diff --git a/resources/celerity/map.php b/resources/celerity/map.php
index ccae91f844..9f7db23957 100644
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -1,2442 +1,2442 @@
 <?php
 
 /**
  * This file is automatically generated. Use 'bin/celerity map' to rebuild it.
  *
  * @generated
  */
 return array(
   'names' => array(
     'conpherence.pkg.css' => '0e3cf785',
     'conpherence.pkg.js' => '020aebcf',
     'core.pkg.css' => '1b80c45d',
     'core.pkg.js' => '1e667bcb',
     'dark-console.pkg.js' => '187792c2',
     'differential.pkg.css' => 'd71d4531',
-    'differential.pkg.js' => '5be7941a',
+    'differential.pkg.js' => '5ec354a0',
     'diffusion.pkg.css' => '42c75c37',
     'diffusion.pkg.js' => 'a98c0bf7',
     'maniphest.pkg.css' => '35995d6d',
     'maniphest.pkg.js' => 'c9308721',
     'rsrc/audio/basic/alert.mp3' => '17889334',
     'rsrc/audio/basic/bing.mp3' => 'a817a0c3',
     'rsrc/audio/basic/pock.mp3' => '0fa843d0',
     'rsrc/audio/basic/tap.mp3' => '02d16994',
     'rsrc/audio/basic/ting.mp3' => 'a6b6540e',
     'rsrc/css/aphront/aphront-bars.css' => '4a327b4a',
     'rsrc/css/aphront/dark-console.css' => '7f06cda2',
     'rsrc/css/aphront/dialog-view.css' => '6f4ea703',
     'rsrc/css/aphront/list-filter-view.css' => 'feb64255',
     'rsrc/css/aphront/multi-column.css' => 'fbc00ba3',
     'rsrc/css/aphront/notification.css' => '30240bd2',
     'rsrc/css/aphront/panel-view.css' => '46923d46',
     'rsrc/css/aphront/phabricator-nav-view.css' => '423f92cc',
     'rsrc/css/aphront/table-view.css' => '0bb61df1',
     'rsrc/css/aphront/tokenizer.css' => '34e2a838',
     'rsrc/css/aphront/tooltip.css' => 'e3f2412f',
     'rsrc/css/aphront/typeahead-browse.css' => 'b7ed02d2',
     'rsrc/css/aphront/typeahead.css' => '8779483d',
     'rsrc/css/application/almanac/almanac.css' => '2e050f4f',
     'rsrc/css/application/auth/auth.css' => 'c2f23d74',
     'rsrc/css/application/base/main-menu-view.css' => 'bcec20f0',
     'rsrc/css/application/base/notification-menu.css' => '4df1ee30',
     'rsrc/css/application/base/phui-theme.css' => '35883b37',
     'rsrc/css/application/base/standard-page-view.css' => 'a374f94c',
     'rsrc/css/application/chatlog/chatlog.css' => 'abdc76ee',
     'rsrc/css/application/conduit/conduit-api.css' => 'ce2cfc41',
     'rsrc/css/application/config/config-options.css' => '16c920ae',
     'rsrc/css/application/config/config-template.css' => '20babf50',
     'rsrc/css/application/config/setup-issue.css' => '5eed85b2',
     'rsrc/css/application/config/unhandled-exception.css' => '9ecfc00d',
     'rsrc/css/application/conpherence/color.css' => 'b17746b0',
     'rsrc/css/application/conpherence/durable-column.css' => '2d57072b',
     'rsrc/css/application/conpherence/header-pane.css' => 'c9a3db8e',
     'rsrc/css/application/conpherence/menu.css' => '67f4680d',
     'rsrc/css/application/conpherence/message-pane.css' => 'd244db1e',
     'rsrc/css/application/conpherence/notification.css' => '6a3d4e58',
     'rsrc/css/application/conpherence/participant-pane.css' => '69e0058a',
     'rsrc/css/application/conpherence/transaction.css' => '3a3f5e7e',
     'rsrc/css/application/contentsource/content-source-view.css' => 'cdf0d579',
     'rsrc/css/application/countdown/timer.css' => 'bff8012f',
     'rsrc/css/application/daemon/bulk-job.css' => '73af99f5',
     'rsrc/css/application/dashboard/dashboard.css' => '5a205b9d',
     'rsrc/css/application/diff/diff-tree-view.css' => 'e2d3e222',
     'rsrc/css/application/diff/inline-comment-summary.css' => '81eb368d',
     'rsrc/css/application/differential/add-comment.css' => '7e5900d9',
     'rsrc/css/application/differential/changeset-view.css' => 'a5cc67cf',
     'rsrc/css/application/differential/core.css' => '7300a73e',
     'rsrc/css/application/differential/phui-inline-comment.css' => '48acce5b',
     'rsrc/css/application/differential/revision-comment.css' => '7dbc8d1d',
     'rsrc/css/application/differential/revision-history.css' => '8aa3eac5',
     'rsrc/css/application/differential/revision-list.css' => '93d2df7d',
     'rsrc/css/application/differential/table-of-contents.css' => 'bba788b9',
     'rsrc/css/application/diffusion/diffusion-icons.css' => '23b31a1b',
     'rsrc/css/application/diffusion/diffusion-readme.css' => 'b68a76e4',
     'rsrc/css/application/diffusion/diffusion-repository.css' => 'b89e8c6c',
     'rsrc/css/application/diffusion/diffusion.css' => 'b54c77b0',
     'rsrc/css/application/feed/feed.css' => 'd8b6e3f8',
     'rsrc/css/application/files/global-drag-and-drop.css' => '1d2713a4',
     'rsrc/css/application/flag/flag.css' => '2b77be8d',
     'rsrc/css/application/harbormaster/harbormaster.css' => '8dfe16b2',
     'rsrc/css/application/herald/herald-test.css' => 'e004176f',
     'rsrc/css/application/herald/herald.css' => '648d39e2',
     'rsrc/css/application/maniphest/report.css' => '3d53188b',
     'rsrc/css/application/maniphest/task-edit.css' => '272daa84',
     'rsrc/css/application/maniphest/task-summary.css' => '61d1667e',
     'rsrc/css/application/objectselector/object-selector.css' => 'ee77366f',
     'rsrc/css/application/owners/owners-path-editor.css' => 'fa7c13ef',
     'rsrc/css/application/paste/paste.css' => 'b37bcd38',
     'rsrc/css/application/people/people-picture-menu-item.css' => 'fe8e07cf',
     'rsrc/css/application/people/people-profile.css' => '2ea2daa1',
     'rsrc/css/application/phame/phame.css' => 'bb442327',
     'rsrc/css/application/pholio/pholio-edit.css' => '4df55b3b',
     'rsrc/css/application/pholio/pholio-inline-comments.css' => '722b48c2',
     'rsrc/css/application/pholio/pholio.css' => '88ef5ef1',
     'rsrc/css/application/phortune/phortune-credit-card-form.css' => '3b9868a8',
     'rsrc/css/application/phortune/phortune-invoice.css' => '4436b241',
     'rsrc/css/application/phortune/phortune.css' => '508a1a5e',
     'rsrc/css/application/phrequent/phrequent.css' => 'bd79cc67',
     'rsrc/css/application/phriction/phriction-document-css.css' => '03380da0',
     'rsrc/css/application/policy/policy-edit.css' => '8794e2ed',
     'rsrc/css/application/policy/policy-transaction-detail.css' => 'c02b8384',
     'rsrc/css/application/policy/policy.css' => 'ceb56a08',
     'rsrc/css/application/ponder/ponder-view.css' => '05a09d0a',
     'rsrc/css/application/project/project-card-view.css' => '4e7371cd',
     'rsrc/css/application/project/project-triggers.css' => 'cd9c8bb9',
     'rsrc/css/application/project/project-view.css' => '567858b3',
     'rsrc/css/application/releeph/releeph-core.css' => 'f81ff2db',
     'rsrc/css/application/releeph/releeph-preview-branch.css' => '22db5c07',
     'rsrc/css/application/releeph/releeph-request-differential-create-dialog.css' => '0ac1ea31',
     'rsrc/css/application/releeph/releeph-request-typeahead.css' => 'bce37359',
     'rsrc/css/application/search/application-search-view.css' => '0f7c06d8',
     'rsrc/css/application/search/search-results.css' => '9ea70ace',
     'rsrc/css/application/slowvote/slowvote.css' => '1694baed',
     'rsrc/css/application/tokens/tokens.css' => 'ce5a50bd',
     'rsrc/css/application/uiexample/example.css' => 'b4795059',
     'rsrc/css/core/core.css' => '1b29ed61',
     'rsrc/css/core/remarkup.css' => 'c286eaef',
     'rsrc/css/core/syntax.css' => '220b85f9',
     'rsrc/css/core/z-index.css' => '612e9522',
     'rsrc/css/diviner/diviner-shared.css' => '4bd263b0',
     'rsrc/css/font/font-awesome.css' => '3883938a',
     'rsrc/css/font/font-lato.css' => '23631304',
     'rsrc/css/font/phui-font-icon-base.css' => '303c9b87',
     'rsrc/css/layout/phabricator-source-code-view.css' => '03d7ac28',
     'rsrc/css/phui/button/phui-button-bar.css' => 'a4aa75c4',
     'rsrc/css/phui/button/phui-button-simple.css' => '1ff278aa',
     'rsrc/css/phui/button/phui-button.css' => 'ea704902',
     'rsrc/css/phui/calendar/phui-calendar-day.css' => '9597d706',
     'rsrc/css/phui/calendar/phui-calendar-list.css' => 'ccd7e4e2',
     'rsrc/css/phui/calendar/phui-calendar-month.css' => 'cb758c42',
     'rsrc/css/phui/calendar/phui-calendar.css' => 'f11073aa',
     'rsrc/css/phui/object-item/phui-oi-big-ui.css' => 'fa74cc35',
     'rsrc/css/phui/object-item/phui-oi-color.css' => 'b517bfa0',
     'rsrc/css/phui/object-item/phui-oi-drag-ui.css' => 'da15d3dc',
     'rsrc/css/phui/object-item/phui-oi-flush-ui.css' => '490e2e2e',
     'rsrc/css/phui/object-item/phui-oi-list-view.css' => 'd7723ecc',
     'rsrc/css/phui/object-item/phui-oi-simple-ui.css' => '6a30fa46',
     'rsrc/css/phui/phui-action-list.css' => '1b0085b2',
     'rsrc/css/phui/phui-action-panel.css' => '6c386cbf',
     'rsrc/css/phui/phui-badge.css' => '666e25ad',
     'rsrc/css/phui/phui-basic-nav-view.css' => '56ebd66d',
     'rsrc/css/phui/phui-big-info-view.css' => '362ad37b',
     'rsrc/css/phui/phui-box.css' => '5ed3b8cb',
     'rsrc/css/phui/phui-bulk-editor.css' => '374d5e30',
     'rsrc/css/phui/phui-chart.css' => '14df9ae3',
     'rsrc/css/phui/phui-cms.css' => '8c05c41e',
     'rsrc/css/phui/phui-comment-form.css' => '68a2d99a',
     'rsrc/css/phui/phui-comment-panel.css' => 'ec4e31c0',
     'rsrc/css/phui/phui-crumbs-view.css' => '614f43cf',
     'rsrc/css/phui/phui-curtain-object-ref-view.css' => '12404744',
     'rsrc/css/phui/phui-curtain-view.css' => '68c5efb6',
     'rsrc/css/phui/phui-document-pro.css' => 'b9613a10',
     'rsrc/css/phui/phui-document-summary.css' => 'b068eed1',
     'rsrc/css/phui/phui-document.css' => '52b748a5',
     'rsrc/css/phui/phui-feed-story.css' => 'a0c05029',
     'rsrc/css/phui/phui-fontkit.css' => '1ec937e5',
     'rsrc/css/phui/phui-form-view.css' => '01b796c0',
     'rsrc/css/phui/phui-form.css' => '1f177cb7',
     'rsrc/css/phui/phui-formation-view.css' => 'd2dec8ed',
     'rsrc/css/phui/phui-head-thing.css' => 'd7f293df',
     'rsrc/css/phui/phui-header-view.css' => '36c86a58',
     'rsrc/css/phui/phui-hovercard.css' => '6ca90fa0',
     'rsrc/css/phui/phui-icon-set-selector.css' => '7aa5f3ec',
     'rsrc/css/phui/phui-icon.css' => '4cbc684a',
     'rsrc/css/phui/phui-image-mask.css' => '62c7f4d2',
     'rsrc/css/phui/phui-info-view.css' => 'a10a909b',
     'rsrc/css/phui/phui-invisible-character-view.css' => 'c694c4a4',
     'rsrc/css/phui/phui-left-right.css' => '68513c34',
     'rsrc/css/phui/phui-lightbox.css' => '4ebf22da',
     'rsrc/css/phui/phui-list.css' => '2f253c22',
     'rsrc/css/phui/phui-object-box.css' => 'b8d7eea0',
     'rsrc/css/phui/phui-pager.css' => 'd022c7ad',
     'rsrc/css/phui/phui-pinboard-view.css' => '1f08f5d8',
     'rsrc/css/phui/phui-policy-section-view.css' => '139fdc64',
     'rsrc/css/phui/phui-property-list-view.css' => '9c477af1',
     'rsrc/css/phui/phui-remarkup-preview.css' => '91767007',
     'rsrc/css/phui/phui-segment-bar-view.css' => '5166b370',
     'rsrc/css/phui/phui-spacing.css' => 'b05cadc3',
     'rsrc/css/phui/phui-status.css' => 'e5ff8be0',
     'rsrc/css/phui/phui-tag-view.css' => '8519160a',
     'rsrc/css/phui/phui-timeline-view.css' => '2d32d7a9',
     'rsrc/css/phui/phui-two-column-view.css' => 'f96d319f',
     'rsrc/css/phui/workboards/phui-workboard-color.css' => 'e86de308',
     'rsrc/css/phui/workboards/phui-workboard.css' => '74fc9d98',
     'rsrc/css/phui/workboards/phui-workcard.css' => '913441b6',
     'rsrc/css/phui/workboards/phui-workpanel.css' => '3ae89b20',
     'rsrc/css/sprite-login.css' => '18b368a6',
     'rsrc/css/sprite-tokens.css' => 'f1896dc5',
     'rsrc/css/syntax/syntax-default.css' => '055fc231',
     'rsrc/externals/d3/d3.min.js' => '9d068042',
     'rsrc/externals/font/fontawesome/fontawesome-webfont.eot' => '23f8c698',
     'rsrc/externals/font/fontawesome/fontawesome-webfont.ttf' => '70983df0',
     'rsrc/externals/font/fontawesome/fontawesome-webfont.woff' => 'cd02f93b',
     'rsrc/externals/font/fontawesome/fontawesome-webfont.woff2' => '351fd46a',
     'rsrc/externals/font/lato/lato-bold.eot' => '7367aa5e',
     'rsrc/externals/font/lato/lato-bold.svg' => '681aa4f5',
     'rsrc/externals/font/lato/lato-bold.ttf' => '66d3c296',
     'rsrc/externals/font/lato/lato-bold.woff' => '89d9fba7',
     'rsrc/externals/font/lato/lato-bold.woff2' => '389fcdb1',
     'rsrc/externals/font/lato/lato-bolditalic.eot' => '03eeb4da',
     'rsrc/externals/font/lato/lato-bolditalic.svg' => 'f56fa11c',
     'rsrc/externals/font/lato/lato-bolditalic.ttf' => '9c3aec21',
     'rsrc/externals/font/lato/lato-bolditalic.woff' => 'bfbd0616',
     'rsrc/externals/font/lato/lato-bolditalic.woff2' => 'bc7d1274',
     'rsrc/externals/font/lato/lato-italic.eot' => '7db5b247',
     'rsrc/externals/font/lato/lato-italic.svg' => 'b1ae496f',
     'rsrc/externals/font/lato/lato-italic.ttf' => '43eed813',
     'rsrc/externals/font/lato/lato-italic.woff' => 'c28975e1',
     'rsrc/externals/font/lato/lato-italic.woff2' => 'fffc0d8c',
     'rsrc/externals/font/lato/lato-regular.eot' => '06e0c291',
     'rsrc/externals/font/lato/lato-regular.svg' => '3ad95f53',
     'rsrc/externals/font/lato/lato-regular.ttf' => 'e2e9c398',
     'rsrc/externals/font/lato/lato-regular.woff' => '0b13d332',
     'rsrc/externals/font/lato/lato-regular.woff2' => '8f846797',
     'rsrc/externals/javelin/core/Event.js' => 'c03f2fb4',
     'rsrc/externals/javelin/core/Stratcom.js' => '0889b835',
     'rsrc/externals/javelin/core/__tests__/event-stop-and-kill.js' => '048472d2',
     'rsrc/externals/javelin/core/__tests__/install.js' => '14a7e671',
     'rsrc/externals/javelin/core/__tests__/stratcom.js' => 'a28464bb',
     'rsrc/externals/javelin/core/__tests__/util.js' => 'e29a4354',
     'rsrc/externals/javelin/core/init.js' => '98e6504a',
     'rsrc/externals/javelin/core/init_node.js' => '16961339',
     'rsrc/externals/javelin/core/install.js' => '5902260c',
     'rsrc/externals/javelin/core/util.js' => 'edb4d8c9',
     'rsrc/externals/javelin/docs/Base.js' => '5a401d7d',
     'rsrc/externals/javelin/docs/onload.js' => 'ee58fb62',
     'rsrc/externals/javelin/ext/fx/Color.js' => '78f811c9',
     'rsrc/externals/javelin/ext/fx/FX.js' => '34450586',
     'rsrc/externals/javelin/ext/reactor/core/DynVal.js' => '202a2e85',
     'rsrc/externals/javelin/ext/reactor/core/Reactor.js' => '1c850a26',
     'rsrc/externals/javelin/ext/reactor/core/ReactorNode.js' => '72960bc1',
     'rsrc/externals/javelin/ext/reactor/core/ReactorNodeCalmer.js' => '225bbb98',
     'rsrc/externals/javelin/ext/reactor/dom/RDOM.js' => '6cfa0008',
     'rsrc/externals/javelin/ext/view/HTMLView.js' => 'f8c4e135',
     'rsrc/externals/javelin/ext/view/View.js' => '289bf236',
     'rsrc/externals/javelin/ext/view/ViewInterpreter.js' => '876506b6',
     'rsrc/externals/javelin/ext/view/ViewPlaceholder.js' => 'a9942052',
     'rsrc/externals/javelin/ext/view/ViewRenderer.js' => '9aae2b66',
     'rsrc/externals/javelin/ext/view/ViewVisitor.js' => '308f9fe4',
     'rsrc/externals/javelin/ext/view/__tests__/HTMLView.js' => '6e50a13f',
     'rsrc/externals/javelin/ext/view/__tests__/View.js' => 'd284be5d',
     'rsrc/externals/javelin/ext/view/__tests__/ViewInterpreter.js' => 'a9f35511',
     'rsrc/externals/javelin/ext/view/__tests__/ViewRenderer.js' => '3a1b81f6',
     'rsrc/externals/javelin/lib/Cookie.js' => '05d290ef',
     'rsrc/externals/javelin/lib/DOM.js' => '94681e22',
     'rsrc/externals/javelin/lib/History.js' => '030b4f7a',
     'rsrc/externals/javelin/lib/JSON.js' => '541f81c3',
     'rsrc/externals/javelin/lib/Leader.js' => '0d2490ce',
     'rsrc/externals/javelin/lib/Mask.js' => '7c4d8998',
     'rsrc/externals/javelin/lib/Quicksand.js' => 'd3799cb4',
     'rsrc/externals/javelin/lib/Request.js' => '84e6891f',
     'rsrc/externals/javelin/lib/Resource.js' => '740956e1',
     'rsrc/externals/javelin/lib/Routable.js' => '6a18c42e',
     'rsrc/externals/javelin/lib/Router.js' => '32755edb',
     'rsrc/externals/javelin/lib/Scrollbar.js' => 'a43ae2ae',
     'rsrc/externals/javelin/lib/Sound.js' => 'd4cc2d2a',
     'rsrc/externals/javelin/lib/URI.js' => '2e255291',
     'rsrc/externals/javelin/lib/Vector.js' => 'e9c80beb',
     'rsrc/externals/javelin/lib/WebSocket.js' => 'fdc13e4e',
     'rsrc/externals/javelin/lib/Workflow.js' => '945ff654',
     'rsrc/externals/javelin/lib/__tests__/Cookie.js' => 'ca686f71',
     'rsrc/externals/javelin/lib/__tests__/DOM.js' => '4566e249',
     'rsrc/externals/javelin/lib/__tests__/JSON.js' => '710377ae',
     'rsrc/externals/javelin/lib/__tests__/URI.js' => '6fff0c2b',
     'rsrc/externals/javelin/lib/__tests__/behavior.js' => '8426ebeb',
     'rsrc/externals/javelin/lib/behavior.js' => '1b6acc2a',
     'rsrc/externals/javelin/lib/control/tokenizer/Tokenizer.js' => '89a1ae3a',
     'rsrc/externals/javelin/lib/control/typeahead/Typeahead.js' => 'a4356cde',
     'rsrc/externals/javelin/lib/control/typeahead/normalizer/TypeaheadNormalizer.js' => 'a241536a',
     'rsrc/externals/javelin/lib/control/typeahead/source/TypeaheadCompositeSource.js' => '22ee68a5',
     'rsrc/externals/javelin/lib/control/typeahead/source/TypeaheadOnDemandSource.js' => '23387297',
     'rsrc/externals/javelin/lib/control/typeahead/source/TypeaheadPreloadedSource.js' => '5a79f6c3',
     'rsrc/externals/javelin/lib/control/typeahead/source/TypeaheadSource.js' => '8badee71',
     'rsrc/externals/javelin/lib/control/typeahead/source/TypeaheadStaticSource.js' => '80bff3af',
     'rsrc/favicons/favicon-16x16.png' => '4c51a03a',
     'rsrc/favicons/mask-icon.svg' => 'db699fe1',
     'rsrc/image/BFCFDA.png' => '74b5c88b',
     'rsrc/image/actions/edit.png' => 'fd987dff',
     'rsrc/image/avatar.png' => '0d17c6c4',
     'rsrc/image/checker_dark.png' => '7fc8fa7b',
     'rsrc/image/checker_light.png' => '3157a202',
     'rsrc/image/checker_lighter.png' => 'c45928c1',
     'rsrc/image/chevron-in.png' => '1aa2f88f',
     'rsrc/image/chevron-out.png' => 'c815e272',
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     'rsrc/image/people/user9.png' => '523db8aa',
     'rsrc/image/people/washington.png' => '86159e68',
     'rsrc/image/phrequent_active.png' => 'de66dc50',
     'rsrc/image/phrequent_inactive.png' => '79c61baf',
     'rsrc/image/resize.png' => '9cc83373',
     'rsrc/image/sprite-login-X2.png' => '604545f6',
     'rsrc/image/sprite-login.png' => '7a001a9a',
     'rsrc/image/sprite-tokens-X2.png' => '21621dd9',
     'rsrc/image/sprite-tokens.png' => 'bede2580',
     'rsrc/image/texture/card-gradient.png' => 'e6892cb4',
     'rsrc/image/texture/dark-menu-hover.png' => '390a4fa1',
     'rsrc/image/texture/dark-menu.png' => '542f699c',
     'rsrc/image/texture/grip.png' => 'bc80753a',
     'rsrc/image/texture/panel-header-gradient.png' => '65004dbf',
     'rsrc/image/texture/phlnx-bg.png' => '6c9cd31d',
     'rsrc/image/texture/pholio-background.gif' => '84910bfc',
     'rsrc/image/texture/table_header.png' => '7652d1ad',
     'rsrc/image/texture/table_header_hover.png' => '12ea5236',
     'rsrc/image/texture/table_header_tall.png' => '5cc420c4',
     'rsrc/js/application/aphlict/Aphlict.js' => '022516b4',
     'rsrc/js/application/aphlict/behavior-aphlict-dropdown.js' => 'e9a2940f',
     'rsrc/js/application/aphlict/behavior-aphlict-listen.js' => '4e61fa88',
     'rsrc/js/application/aphlict/behavior-aphlict-status.js' => 'c3703a16',
     'rsrc/js/application/aphlict/behavior-desktop-notifications-control.js' => '070679fe',
     'rsrc/js/application/calendar/behavior-day-view.js' => '727a5a61',
     'rsrc/js/application/calendar/behavior-event-all-day.js' => '0b1bc990',
     'rsrc/js/application/calendar/behavior-month-view.js' => '158c64e0',
     'rsrc/js/application/config/behavior-reorder-fields.js' => '2539f834',
     'rsrc/js/application/conpherence/ConpherenceThreadManager.js' => 'aec8e38c',
     'rsrc/js/application/conpherence/behavior-conpherence-search.js' => '91befbcc',
     'rsrc/js/application/conpherence/behavior-durable-column.js' => 'fa6f30b2',
     'rsrc/js/application/conpherence/behavior-menu.js' => '8c2ed2bf',
     'rsrc/js/application/conpherence/behavior-participant-pane.js' => '43ba89a2',
     'rsrc/js/application/conpherence/behavior-pontificate.js' => '4ae58b5a',
     'rsrc/js/application/conpherence/behavior-quicksand-blacklist.js' => '5a6f6a06',
     'rsrc/js/application/conpherence/behavior-toggle-widget.js' => '8f959ad0',
     'rsrc/js/application/countdown/timer.js' => '6a162524',
     'rsrc/js/application/daemon/behavior-bulk-job-reload.js' => '3829a3cf',
     'rsrc/js/application/dashboard/behavior-dashboard-async-panel.js' => '9c01e364',
     'rsrc/js/application/dashboard/behavior-dashboard-move-panels.js' => 'a2ab19be',
     'rsrc/js/application/dashboard/behavior-dashboard-query-panel-select.js' => '1e413dc9',
     'rsrc/js/application/dashboard/behavior-dashboard-tab-panel.js' => '0116d3e8',
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-    'rsrc/js/application/diff/DiffChangesetList.js' => '6e668c5b',
-    'rsrc/js/application/diff/DiffInline.js' => '9a3963e0',
+    'rsrc/js/application/diff/DiffChangeset.js' => '10ddd7e0',
+    'rsrc/js/application/diff/DiffChangesetList.js' => '303efc90',
+    'rsrc/js/application/diff/DiffInline.js' => 'a0ef0b54',
     'rsrc/js/application/diff/DiffPathView.js' => '8207abf9',
     'rsrc/js/application/diff/DiffTreeView.js' => '5d83623b',
     'rsrc/js/application/differential/behavior-diff-radios.js' => '925fe8cd',
     'rsrc/js/application/differential/behavior-populate.js' => 'b86ef6c2',
     'rsrc/js/application/diffusion/DiffusionLocateFileSource.js' => '94243d89',
     'rsrc/js/application/diffusion/behavior-audit-preview.js' => 'b7b73831',
     'rsrc/js/application/diffusion/behavior-commit-branches.js' => '4b671572',
     'rsrc/js/application/diffusion/behavior-commit-graph.js' => 'ef836bf2',
     'rsrc/js/application/diffusion/behavior-locate-file.js' => '87428eb2',
     'rsrc/js/application/diffusion/behavior-pull-lastmodified.js' => 'c715c123',
     'rsrc/js/application/doorkeeper/behavior-doorkeeper-tag.js' => '6a85bc5a',
     'rsrc/js/application/drydock/drydock-live-operation-status.js' => '47a0728b',
     'rsrc/js/application/fact/Chart.js' => '52e3ff03',
     'rsrc/js/application/fact/ChartCurtainView.js' => '86954222',
     'rsrc/js/application/fact/ChartFunctionLabel.js' => '81de1dab',
     'rsrc/js/application/files/behavior-document-engine.js' => '243d6c22',
     'rsrc/js/application/files/behavior-icon-composer.js' => '38a6cedb',
     'rsrc/js/application/files/behavior-launch-icon-composer.js' => 'a17b84f1',
     'rsrc/js/application/harbormaster/behavior-harbormaster-log.js' => 'b347a301',
     'rsrc/js/application/herald/HeraldRuleEditor.js' => '2633bef7',
     'rsrc/js/application/herald/PathTypeahead.js' => 'ad486db3',
     'rsrc/js/application/herald/herald-rule-editor.js' => '0922e81d',
     'rsrc/js/application/maniphest/behavior-batch-selector.js' => '139ef688',
     'rsrc/js/application/maniphest/behavior-line-chart.js' => 'ad258e28',
     'rsrc/js/application/maniphest/behavior-list-edit.js' => 'c687e867',
     'rsrc/js/application/owners/OwnersPathEditor.js' => '2a8b62d9',
     'rsrc/js/application/owners/owners-path-editor.js' => 'ff688a7a',
     'rsrc/js/application/passphrase/passphrase-credential-control.js' => '48fe33d0',
     'rsrc/js/application/pholio/behavior-pholio-mock-edit.js' => '3eed1f2b',
     'rsrc/js/application/pholio/behavior-pholio-mock-view.js' => '5aa1544e',
     'rsrc/js/application/phortune/behavior-stripe-payment-form.js' => '02cb4398',
     'rsrc/js/application/phortune/behavior-test-payment-form.js' => '4a7fb02b',
     'rsrc/js/application/phortune/phortune-credit-card-form.js' => 'd12d214f',
     'rsrc/js/application/policy/behavior-policy-control.js' => '0eaa33a9',
     'rsrc/js/application/policy/behavior-policy-rule-editor.js' => '9347f172',
     'rsrc/js/application/projects/WorkboardBoard.js' => 'b46d88c5',
     'rsrc/js/application/projects/WorkboardCard.js' => '0392a5d8',
     'rsrc/js/application/projects/WorkboardCardTemplate.js' => '84f82dad',
     'rsrc/js/application/projects/WorkboardColumn.js' => 'c3d24e63',
     'rsrc/js/application/projects/WorkboardController.js' => 'b9d0c2f3',
     'rsrc/js/application/projects/WorkboardDropEffect.js' => '8e0aa661',
     'rsrc/js/application/projects/WorkboardHeader.js' => '111bfd2d',
     'rsrc/js/application/projects/WorkboardHeaderTemplate.js' => 'ebe83a6b',
     'rsrc/js/application/projects/WorkboardOrderTemplate.js' => '03e8891f',
     'rsrc/js/application/projects/behavior-project-boards.js' => '58cb6a88',
     'rsrc/js/application/projects/behavior-project-create.js' => '34c53422',
     'rsrc/js/application/projects/behavior-reorder-columns.js' => '8ac32fd9',
     'rsrc/js/application/releeph/releeph-preview-branch.js' => '75184d68',
     'rsrc/js/application/releeph/releeph-request-state-change.js' => '9f081f05',
     'rsrc/js/application/releeph/releeph-request-typeahead.js' => 'aa3a100c',
     'rsrc/js/application/repository/repository-crossreference.js' => '6337cf26',
     'rsrc/js/application/search/behavior-reorder-profile-menu-items.js' => 'e5bdb730',
     'rsrc/js/application/search/behavior-reorder-queries.js' => 'b86f297f',
     'rsrc/js/application/transactions/behavior-comment-actions.js' => '4dffaeb2',
     'rsrc/js/application/transactions/behavior-reorder-configs.js' => '4842f137',
     'rsrc/js/application/transactions/behavior-reorder-fields.js' => '0ad8d31f',
     'rsrc/js/application/transactions/behavior-show-older-transactions.js' => '8b5c7d65',
     'rsrc/js/application/transactions/behavior-transaction-comment-form.js' => '2bdadf1a',
     'rsrc/js/application/transactions/behavior-transaction-list.js' => '9cec214e',
     'rsrc/js/application/trigger/TriggerRule.js' => '41b7b4f6',
     'rsrc/js/application/trigger/TriggerRuleControl.js' => '5faf27b9',
     'rsrc/js/application/trigger/TriggerRuleEditor.js' => 'b49fd60c',
     'rsrc/js/application/trigger/TriggerRuleType.js' => '4feea7d3',
     'rsrc/js/application/trigger/trigger-rule-editor.js' => '398fdf13',
     'rsrc/js/application/typeahead/behavior-typeahead-browse.js' => '70245195',
     'rsrc/js/application/typeahead/behavior-typeahead-search.js' => '7b139193',
     'rsrc/js/application/uiexample/gesture-example.js' => '242dedd0',
     'rsrc/js/application/uiexample/notification-example.js' => '29819b75',
     'rsrc/js/core/Busy.js' => '5202e831',
     'rsrc/js/core/DragAndDropFileUpload.js' => '4370900d',
     'rsrc/js/core/DraggableList.js' => '0169e425',
     'rsrc/js/core/Favicon.js' => '7930776a',
     'rsrc/js/core/FileUpload.js' => 'ab85e184',
     'rsrc/js/core/Hovercard.js' => '074f0783',
     'rsrc/js/core/KeyboardShortcut.js' => '1a844c06',
     'rsrc/js/core/KeyboardShortcutManager.js' => '81debc48',
     'rsrc/js/core/MultirowRowManager.js' => '5b54c823',
     'rsrc/js/core/Notification.js' => 'a9b91e3f',
     'rsrc/js/core/Prefab.js' => '5793d835',
     'rsrc/js/core/ShapedRequest.js' => '995f5102',
     'rsrc/js/core/TextAreaUtils.js' => 'f340a484',
     'rsrc/js/core/Title.js' => '43bc9360',
     'rsrc/js/core/ToolTip.js' => '83754533',
     'rsrc/js/core/behavior-audio-source.js' => '3dc5ad43',
     'rsrc/js/core/behavior-autofocus.js' => '65bb0011',
     'rsrc/js/core/behavior-badge-view.js' => '92cdd7b6',
     'rsrc/js/core/behavior-bulk-editor.js' => 'aa6d2308',
     'rsrc/js/core/behavior-choose-control.js' => '04f8a1e3',
     'rsrc/js/core/behavior-copy.js' => 'cf32921f',
     'rsrc/js/core/behavior-detect-timezone.js' => '78bc5d94',
     'rsrc/js/core/behavior-device.js' => '0cf79f45',
     'rsrc/js/core/behavior-drag-and-drop-textarea.js' => '7ad020a5',
     'rsrc/js/core/behavior-fancy-datepicker.js' => '956f3eeb',
     'rsrc/js/core/behavior-form.js' => '55d7b788',
     'rsrc/js/core/behavior-gesture.js' => 'b58d1a2a',
     'rsrc/js/core/behavior-global-drag-and-drop.js' => '1cab0e9a',
     'rsrc/js/core/behavior-high-security-warning.js' => 'dae2d55b',
     'rsrc/js/core/behavior-history-install.js' => '6a1583a8',
     'rsrc/js/core/behavior-hovercard.js' => '6c379000',
     'rsrc/js/core/behavior-keyboard-pager.js' => '1325b731',
     'rsrc/js/core/behavior-keyboard-shortcuts.js' => '42c44e8b',
     'rsrc/js/core/behavior-lightbox-attachments.js' => 'c7e748bf',
     'rsrc/js/core/behavior-line-linker.js' => '590e6527',
     'rsrc/js/core/behavior-linked-container.js' => '74446546',
     'rsrc/js/core/behavior-more.js' => '506aa3f4',
     'rsrc/js/core/behavior-object-selector.js' => '98ef467f',
     'rsrc/js/core/behavior-oncopy.js' => 'ff7b3f22',
     'rsrc/js/core/behavior-phabricator-remarkup-assist.js' => '54262396',
     'rsrc/js/core/behavior-read-only-warning.js' => 'b9109f8f',
     'rsrc/js/core/behavior-redirect.js' => '407ee861',
     'rsrc/js/core/behavior-refresh-csrf.js' => '46116c01',
     'rsrc/js/core/behavior-remarkup-load-image.js' => '202bfa3f',
     'rsrc/js/core/behavior-remarkup-preview.js' => 'd8a86cfb',
     'rsrc/js/core/behavior-reorder-applications.js' => 'aa371860',
     'rsrc/js/core/behavior-reveal-content.js' => 'b105a3a6',
     'rsrc/js/core/behavior-scrollbar.js' => '92388bae',
     'rsrc/js/core/behavior-search-typeahead.js' => '1cb7d027',
     'rsrc/js/core/behavior-select-content.js' => 'e8240b50',
     'rsrc/js/core/behavior-select-on-click.js' => '66365ee2',
     'rsrc/js/core/behavior-setup-check-https.js' => '01384686',
     'rsrc/js/core/behavior-time-typeahead.js' => '5803b9e7',
     'rsrc/js/core/behavior-toggle-class.js' => '32db8374',
     'rsrc/js/core/behavior-tokenizer.js' => '3b4899b0',
     'rsrc/js/core/behavior-tooltip.js' => '73ecc1f8',
     'rsrc/js/core/behavior-user-menu.js' => '60cd9241',
     'rsrc/js/core/behavior-watch-anchor.js' => 'a77e2cbd',
     'rsrc/js/core/behavior-workflow.js' => '9623adc1',
     'rsrc/js/core/darkconsole/DarkLog.js' => '3b869402',
     'rsrc/js/core/darkconsole/DarkMessage.js' => '26cd4b73',
     'rsrc/js/core/darkconsole/behavior-dark-console.js' => '457f4d16',
     'rsrc/js/core/phtize.js' => '2f1db1ed',
     'rsrc/js/phui/behavior-phui-dropdown-menu.js' => '5cf0501a',
     'rsrc/js/phui/behavior-phui-file-upload.js' => 'e150bd50',
     'rsrc/js/phui/behavior-phui-selectable-list.js' => 'b26a41e4',
     'rsrc/js/phui/behavior-phui-submenu.js' => 'b5e9bff9',
     'rsrc/js/phui/behavior-phui-tab-group.js' => '242aa08b',
     'rsrc/js/phui/behavior-phui-timer-control.js' => 'f84bcbf4',
     'rsrc/js/phuix/PHUIXActionListView.js' => 'c68f183f',
     'rsrc/js/phuix/PHUIXActionView.js' => 'a8f573a9',
     'rsrc/js/phuix/PHUIXAutocomplete.js' => '2fbe234d',
     'rsrc/js/phuix/PHUIXButtonView.js' => '55a24e84',
     'rsrc/js/phuix/PHUIXDropdownMenu.js' => '7acfd98b',
     'rsrc/js/phuix/PHUIXExample.js' => 'c2c500a7',
     'rsrc/js/phuix/PHUIXFormControl.js' => '38c1f3fb',
     'rsrc/js/phuix/PHUIXFormationColumnView.js' => '4bcc1f78',
     'rsrc/js/phuix/PHUIXFormationFlankView.js' => '6648270a',
     'rsrc/js/phuix/PHUIXFormationView.js' => 'cef53b3e',
     'rsrc/js/phuix/PHUIXIconView.js' => 'a5257c4e',
   ),
   'symbols' => array(
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     'aphront-bars' => '4a327b4a',
     'aphront-dark-console-css' => '7f06cda2',
     'aphront-dialog-view-css' => '6f4ea703',
     'aphront-list-filter-view-css' => 'feb64255',
     'aphront-multi-column-view-css' => 'fbc00ba3',
     'aphront-panel-view-css' => '46923d46',
     'aphront-table-view-css' => '0bb61df1',
     'aphront-tokenizer-control-css' => '34e2a838',
     'aphront-tooltip-css' => 'e3f2412f',
     'aphront-typeahead-control-css' => '8779483d',
     'application-search-view-css' => '0f7c06d8',
     'auth-css' => 'c2f23d74',
     'bulk-job-css' => '73af99f5',
     'conduit-api-css' => 'ce2cfc41',
     'config-options-css' => '16c920ae',
     'conpherence-color-css' => 'b17746b0',
     'conpherence-durable-column-view' => '2d57072b',
     'conpherence-header-pane-css' => 'c9a3db8e',
     'conpherence-menu-css' => '67f4680d',
     'conpherence-message-pane-css' => 'd244db1e',
     'conpherence-notification-css' => '6a3d4e58',
     'conpherence-participant-pane-css' => '69e0058a',
     'conpherence-thread-manager' => 'aec8e38c',
     'conpherence-transaction-css' => '3a3f5e7e',
     'd3' => '9d068042',
     'diff-tree-view-css' => 'e2d3e222',
     'differential-changeset-view-css' => 'a5cc67cf',
     'differential-core-view-css' => '7300a73e',
     'differential-revision-add-comment-css' => '7e5900d9',
     'differential-revision-comment-css' => '7dbc8d1d',
     'differential-revision-history-css' => '8aa3eac5',
     'differential-revision-list-css' => '93d2df7d',
     'differential-table-of-contents-css' => 'bba788b9',
     'diffusion-css' => 'b54c77b0',
     'diffusion-icons-css' => '23b31a1b',
     'diffusion-readme-css' => 'b68a76e4',
     'diffusion-repository-css' => 'b89e8c6c',
     'diviner-shared-css' => '4bd263b0',
     'font-fontawesome' => '3883938a',
     'font-lato' => '23631304',
     'global-drag-and-drop-css' => '1d2713a4',
     'harbormaster-css' => '8dfe16b2',
     'herald-css' => '648d39e2',
     'herald-rule-editor' => '2633bef7',
     'herald-test-css' => 'e004176f',
     'inline-comment-summary-css' => '81eb368d',
     'javelin-aphlict' => '022516b4',
     'javelin-behavior' => '1b6acc2a',
     'javelin-behavior-aphlict-dropdown' => 'e9a2940f',
     'javelin-behavior-aphlict-listen' => '4e61fa88',
     'javelin-behavior-aphlict-status' => 'c3703a16',
     'javelin-behavior-aphront-basic-tokenizer' => '3b4899b0',
     'javelin-behavior-aphront-drag-and-drop-textarea' => '7ad020a5',
     'javelin-behavior-aphront-form-disable-on-submit' => '55d7b788',
     'javelin-behavior-aphront-more' => '506aa3f4',
     'javelin-behavior-audio-source' => '3dc5ad43',
     'javelin-behavior-audit-preview' => 'b7b73831',
     'javelin-behavior-badge-view' => '92cdd7b6',
     'javelin-behavior-bulk-editor' => 'aa6d2308',
     'javelin-behavior-bulk-job-reload' => '3829a3cf',
     'javelin-behavior-calendar-month-view' => '158c64e0',
     'javelin-behavior-choose-control' => '04f8a1e3',
     'javelin-behavior-comment-actions' => '4dffaeb2',
     'javelin-behavior-config-reorder-fields' => '2539f834',
     'javelin-behavior-conpherence-menu' => '8c2ed2bf',
     'javelin-behavior-conpherence-participant-pane' => '43ba89a2',
     'javelin-behavior-conpherence-pontificate' => '4ae58b5a',
     'javelin-behavior-conpherence-search' => '91befbcc',
     'javelin-behavior-countdown-timer' => '6a162524',
     'javelin-behavior-dark-console' => '457f4d16',
     'javelin-behavior-dashboard-async-panel' => '9c01e364',
     'javelin-behavior-dashboard-move-panels' => 'a2ab19be',
     'javelin-behavior-dashboard-query-panel-select' => '1e413dc9',
     'javelin-behavior-dashboard-tab-panel' => '0116d3e8',
     'javelin-behavior-day-view' => '727a5a61',
     'javelin-behavior-desktop-notifications-control' => '070679fe',
     'javelin-behavior-detect-timezone' => '78bc5d94',
     'javelin-behavior-device' => '0cf79f45',
     'javelin-behavior-differential-diff-radios' => '925fe8cd',
     'javelin-behavior-differential-populate' => 'b86ef6c2',
     'javelin-behavior-diffusion-commit-branches' => '4b671572',
     'javelin-behavior-diffusion-commit-graph' => 'ef836bf2',
     'javelin-behavior-diffusion-locate-file' => '87428eb2',
     'javelin-behavior-diffusion-pull-lastmodified' => 'c715c123',
     'javelin-behavior-document-engine' => '243d6c22',
     'javelin-behavior-doorkeeper-tag' => '6a85bc5a',
     'javelin-behavior-drydock-live-operation-status' => '47a0728b',
     'javelin-behavior-durable-column' => 'fa6f30b2',
     'javelin-behavior-editengine-reorder-configs' => '4842f137',
     'javelin-behavior-editengine-reorder-fields' => '0ad8d31f',
     'javelin-behavior-event-all-day' => '0b1bc990',
     'javelin-behavior-fancy-datepicker' => '956f3eeb',
     'javelin-behavior-global-drag-and-drop' => '1cab0e9a',
     'javelin-behavior-harbormaster-log' => 'b347a301',
     'javelin-behavior-herald-rule-editor' => '0922e81d',
     'javelin-behavior-high-security-warning' => 'dae2d55b',
     'javelin-behavior-history-install' => '6a1583a8',
     'javelin-behavior-icon-composer' => '38a6cedb',
     'javelin-behavior-launch-icon-composer' => 'a17b84f1',
     'javelin-behavior-lightbox-attachments' => 'c7e748bf',
     'javelin-behavior-line-chart' => 'ad258e28',
     'javelin-behavior-linked-container' => '74446546',
     'javelin-behavior-maniphest-batch-selector' => '139ef688',
     'javelin-behavior-maniphest-list-editor' => 'c687e867',
     'javelin-behavior-owners-path-editor' => 'ff688a7a',
     'javelin-behavior-passphrase-credential-control' => '48fe33d0',
     'javelin-behavior-phabricator-autofocus' => '65bb0011',
     'javelin-behavior-phabricator-clipboard-copy' => 'cf32921f',
     'javelin-behavior-phabricator-gesture' => 'b58d1a2a',
     'javelin-behavior-phabricator-gesture-example' => '242dedd0',
     'javelin-behavior-phabricator-keyboard-pager' => '1325b731',
     'javelin-behavior-phabricator-keyboard-shortcuts' => '42c44e8b',
     'javelin-behavior-phabricator-line-linker' => '590e6527',
     'javelin-behavior-phabricator-notification-example' => '29819b75',
     'javelin-behavior-phabricator-object-selector' => '98ef467f',
     'javelin-behavior-phabricator-oncopy' => 'ff7b3f22',
     'javelin-behavior-phabricator-remarkup-assist' => '54262396',
     'javelin-behavior-phabricator-reveal-content' => 'b105a3a6',
     'javelin-behavior-phabricator-search-typeahead' => '1cb7d027',
     'javelin-behavior-phabricator-show-older-transactions' => '8b5c7d65',
     'javelin-behavior-phabricator-tooltips' => '73ecc1f8',
     'javelin-behavior-phabricator-transaction-comment-form' => '2bdadf1a',
     'javelin-behavior-phabricator-transaction-list' => '9cec214e',
     'javelin-behavior-phabricator-watch-anchor' => 'a77e2cbd',
     'javelin-behavior-pholio-mock-edit' => '3eed1f2b',
     'javelin-behavior-pholio-mock-view' => '5aa1544e',
     'javelin-behavior-phui-dropdown-menu' => '5cf0501a',
     'javelin-behavior-phui-file-upload' => 'e150bd50',
     'javelin-behavior-phui-hovercards' => '6c379000',
     'javelin-behavior-phui-selectable-list' => 'b26a41e4',
     'javelin-behavior-phui-submenu' => 'b5e9bff9',
     'javelin-behavior-phui-tab-group' => '242aa08b',
     'javelin-behavior-phui-timer-control' => 'f84bcbf4',
     'javelin-behavior-phuix-example' => 'c2c500a7',
     'javelin-behavior-policy-control' => '0eaa33a9',
     'javelin-behavior-policy-rule-editor' => '9347f172',
     'javelin-behavior-project-boards' => '58cb6a88',
     'javelin-behavior-project-create' => '34c53422',
     'javelin-behavior-quicksand-blacklist' => '5a6f6a06',
     'javelin-behavior-read-only-warning' => 'b9109f8f',
     'javelin-behavior-redirect' => '407ee861',
     'javelin-behavior-refresh-csrf' => '46116c01',
     'javelin-behavior-releeph-preview-branch' => '75184d68',
     'javelin-behavior-releeph-request-state-change' => '9f081f05',
     'javelin-behavior-releeph-request-typeahead' => 'aa3a100c',
     'javelin-behavior-remarkup-load-image' => '202bfa3f',
     'javelin-behavior-remarkup-preview' => 'd8a86cfb',
     'javelin-behavior-reorder-applications' => 'aa371860',
     'javelin-behavior-reorder-columns' => '8ac32fd9',
     'javelin-behavior-reorder-profile-menu-items' => 'e5bdb730',
     'javelin-behavior-repository-crossreference' => '6337cf26',
     'javelin-behavior-scrollbar' => '92388bae',
     'javelin-behavior-search-reorder-queries' => 'b86f297f',
     'javelin-behavior-select-content' => 'e8240b50',
     'javelin-behavior-select-on-click' => '66365ee2',
     'javelin-behavior-setup-check-https' => '01384686',
     'javelin-behavior-stripe-payment-form' => '02cb4398',
     'javelin-behavior-test-payment-form' => '4a7fb02b',
     'javelin-behavior-time-typeahead' => '5803b9e7',
     'javelin-behavior-toggle-class' => '32db8374',
     'javelin-behavior-toggle-widget' => '8f959ad0',
     'javelin-behavior-trigger-rule-editor' => '398fdf13',
     'javelin-behavior-typeahead-browse' => '70245195',
     'javelin-behavior-typeahead-search' => '7b139193',
     'javelin-behavior-user-menu' => '60cd9241',
     'javelin-behavior-view-placeholder' => 'a9942052',
     'javelin-behavior-workflow' => '9623adc1',
     'javelin-chart' => '52e3ff03',
     'javelin-chart-curtain-view' => '86954222',
     'javelin-chart-function-label' => '81de1dab',
     'javelin-color' => '78f811c9',
     'javelin-cookie' => '05d290ef',
     'javelin-diffusion-locate-file-source' => '94243d89',
     'javelin-dom' => '94681e22',
     'javelin-dynval' => '202a2e85',
     'javelin-event' => 'c03f2fb4',
     'javelin-fx' => '34450586',
     'javelin-history' => '030b4f7a',
     'javelin-install' => '5902260c',
     'javelin-json' => '541f81c3',
     'javelin-leader' => '0d2490ce',
     'javelin-magical-init' => '98e6504a',
     'javelin-mask' => '7c4d8998',
     'javelin-quicksand' => 'd3799cb4',
     'javelin-reactor' => '1c850a26',
     'javelin-reactor-dom' => '6cfa0008',
     'javelin-reactor-node-calmer' => '225bbb98',
     'javelin-reactornode' => '72960bc1',
     'javelin-request' => '84e6891f',
     'javelin-resource' => '740956e1',
     'javelin-routable' => '6a18c42e',
     'javelin-router' => '32755edb',
     'javelin-scrollbar' => 'a43ae2ae',
     'javelin-sound' => 'd4cc2d2a',
     'javelin-stratcom' => '0889b835',
     'javelin-tokenizer' => '89a1ae3a',
     'javelin-typeahead' => 'a4356cde',
     'javelin-typeahead-composite-source' => '22ee68a5',
     'javelin-typeahead-normalizer' => 'a241536a',
     'javelin-typeahead-ondemand-source' => '23387297',
     'javelin-typeahead-preloaded-source' => '5a79f6c3',
     'javelin-typeahead-source' => '8badee71',
     'javelin-typeahead-static-source' => '80bff3af',
     'javelin-uri' => '2e255291',
     'javelin-util' => 'edb4d8c9',
     'javelin-vector' => 'e9c80beb',
     'javelin-view' => '289bf236',
     'javelin-view-html' => 'f8c4e135',
     'javelin-view-interpreter' => '876506b6',
     'javelin-view-renderer' => '9aae2b66',
     'javelin-view-visitor' => '308f9fe4',
     'javelin-websocket' => 'fdc13e4e',
     'javelin-workboard-board' => 'b46d88c5',
     'javelin-workboard-card' => '0392a5d8',
     'javelin-workboard-card-template' => '84f82dad',
     'javelin-workboard-column' => 'c3d24e63',
     'javelin-workboard-controller' => 'b9d0c2f3',
     'javelin-workboard-drop-effect' => '8e0aa661',
     'javelin-workboard-header' => '111bfd2d',
     'javelin-workboard-header-template' => 'ebe83a6b',
     'javelin-workboard-order-template' => '03e8891f',
     'javelin-workflow' => '945ff654',
     'maniphest-report-css' => '3d53188b',
     'maniphest-task-edit-css' => '272daa84',
     'maniphest-task-summary-css' => '61d1667e',
     'multirow-row-manager' => '5b54c823',
     'owners-path-editor' => '2a8b62d9',
     'owners-path-editor-css' => 'fa7c13ef',
     'paste-css' => 'b37bcd38',
     'path-typeahead' => 'ad486db3',
     'people-picture-menu-item-css' => 'fe8e07cf',
     'people-profile-css' => '2ea2daa1',
     'phabricator-action-list-view-css' => '1b0085b2',
     'phabricator-busy' => '5202e831',
     'phabricator-chatlog-css' => 'abdc76ee',
     'phabricator-content-source-view-css' => 'cdf0d579',
     'phabricator-core-css' => '1b29ed61',
     'phabricator-countdown-css' => 'bff8012f',
     'phabricator-darklog' => '3b869402',
     'phabricator-darkmessage' => '26cd4b73',
     'phabricator-dashboard-css' => '5a205b9d',
-    'phabricator-diff-changeset' => '700bf848',
-    'phabricator-diff-changeset-list' => '6e668c5b',
-    'phabricator-diff-inline' => '9a3963e0',
+    'phabricator-diff-changeset' => '10ddd7e0',
+    'phabricator-diff-changeset-list' => '303efc90',
+    'phabricator-diff-inline' => 'a0ef0b54',
     'phabricator-diff-path-view' => '8207abf9',
     'phabricator-diff-tree-view' => '5d83623b',
     'phabricator-drag-and-drop-file-upload' => '4370900d',
     'phabricator-draggable-list' => '0169e425',
     'phabricator-fatal-config-template-css' => '20babf50',
     'phabricator-favicon' => '7930776a',
     'phabricator-feed-css' => 'd8b6e3f8',
     'phabricator-file-upload' => 'ab85e184',
     'phabricator-flag-css' => '2b77be8d',
     'phabricator-keyboard-shortcut' => '1a844c06',
     'phabricator-keyboard-shortcut-manager' => '81debc48',
     'phabricator-main-menu-view' => 'bcec20f0',
     'phabricator-nav-view-css' => '423f92cc',
     'phabricator-notification' => 'a9b91e3f',
     'phabricator-notification-css' => '30240bd2',
     'phabricator-notification-menu-css' => '4df1ee30',
     'phabricator-object-selector-css' => 'ee77366f',
     'phabricator-phtize' => '2f1db1ed',
     'phabricator-prefab' => '5793d835',
     'phabricator-remarkup-css' => 'c286eaef',
     'phabricator-search-results-css' => '9ea70ace',
     'phabricator-shaped-request' => '995f5102',
     'phabricator-slowvote-css' => '1694baed',
     'phabricator-source-code-view-css' => '03d7ac28',
     'phabricator-standard-page-view' => 'a374f94c',
     'phabricator-textareautils' => 'f340a484',
     'phabricator-title' => '43bc9360',
     'phabricator-tooltip' => '83754533',
     'phabricator-ui-example-css' => 'b4795059',
     'phabricator-zindex-css' => '612e9522',
     'phame-css' => 'bb442327',
     'pholio-css' => '88ef5ef1',
     'pholio-edit-css' => '4df55b3b',
     'pholio-inline-comments-css' => '722b48c2',
     'phortune-credit-card-form' => 'd12d214f',
     'phortune-credit-card-form-css' => '3b9868a8',
     'phortune-css' => '508a1a5e',
     'phortune-invoice-css' => '4436b241',
     'phrequent-css' => 'bd79cc67',
     'phriction-document-css' => '03380da0',
     'phui-action-panel-css' => '6c386cbf',
     'phui-badge-view-css' => '666e25ad',
     'phui-basic-nav-view-css' => '56ebd66d',
     'phui-big-info-view-css' => '362ad37b',
     'phui-box-css' => '5ed3b8cb',
     'phui-bulk-editor-css' => '374d5e30',
     'phui-button-bar-css' => 'a4aa75c4',
     'phui-button-css' => 'ea704902',
     'phui-button-simple-css' => '1ff278aa',
     'phui-calendar-css' => 'f11073aa',
     'phui-calendar-day-css' => '9597d706',
     'phui-calendar-list-css' => 'ccd7e4e2',
     'phui-calendar-month-css' => 'cb758c42',
     'phui-chart-css' => '14df9ae3',
     'phui-cms-css' => '8c05c41e',
     'phui-comment-form-css' => '68a2d99a',
     'phui-comment-panel-css' => 'ec4e31c0',
     'phui-crumbs-view-css' => '614f43cf',
     'phui-curtain-object-ref-view-css' => '12404744',
     'phui-curtain-view-css' => '68c5efb6',
     'phui-document-summary-view-css' => 'b068eed1',
     'phui-document-view-css' => '52b748a5',
     'phui-document-view-pro-css' => 'b9613a10',
     'phui-feed-story-css' => 'a0c05029',
     'phui-font-icon-base-css' => '303c9b87',
     'phui-fontkit-css' => '1ec937e5',
     'phui-form-css' => '1f177cb7',
     'phui-form-view-css' => '01b796c0',
     'phui-formation-view-css' => 'd2dec8ed',
     'phui-head-thing-view-css' => 'd7f293df',
     'phui-header-view-css' => '36c86a58',
     'phui-hovercard' => '074f0783',
     'phui-hovercard-view-css' => '6ca90fa0',
     'phui-icon-set-selector-css' => '7aa5f3ec',
     'phui-icon-view-css' => '4cbc684a',
     'phui-image-mask-css' => '62c7f4d2',
     'phui-info-view-css' => 'a10a909b',
     'phui-inline-comment-view-css' => '48acce5b',
     'phui-invisible-character-view-css' => 'c694c4a4',
     'phui-left-right-css' => '68513c34',
     'phui-lightbox-css' => '4ebf22da',
     'phui-list-view-css' => '2f253c22',
     'phui-object-box-css' => 'b8d7eea0',
     'phui-oi-big-ui-css' => 'fa74cc35',
     'phui-oi-color-css' => 'b517bfa0',
     'phui-oi-drag-ui-css' => 'da15d3dc',
     'phui-oi-flush-ui-css' => '490e2e2e',
     'phui-oi-list-view-css' => 'd7723ecc',
     'phui-oi-simple-ui-css' => '6a30fa46',
     'phui-pager-css' => 'd022c7ad',
     'phui-pinboard-view-css' => '1f08f5d8',
     'phui-policy-section-view-css' => '139fdc64',
     'phui-property-list-view-css' => '9c477af1',
     'phui-remarkup-preview-css' => '91767007',
     'phui-segment-bar-view-css' => '5166b370',
     'phui-spacing-css' => 'b05cadc3',
     'phui-status-list-view-css' => 'e5ff8be0',
     'phui-tag-view-css' => '8519160a',
     'phui-theme-css' => '35883b37',
     'phui-timeline-view-css' => '2d32d7a9',
     'phui-two-column-view-css' => 'f96d319f',
     'phui-workboard-color-css' => 'e86de308',
     'phui-workboard-view-css' => '74fc9d98',
     'phui-workcard-view-css' => '913441b6',
     'phui-workpanel-view-css' => '3ae89b20',
     'phuix-action-list-view' => 'c68f183f',
     'phuix-action-view' => 'a8f573a9',
     'phuix-autocomplete' => '2fbe234d',
     'phuix-button-view' => '55a24e84',
     'phuix-dropdown-menu' => '7acfd98b',
     'phuix-form-control-view' => '38c1f3fb',
     'phuix-formation-column-view' => '4bcc1f78',
     'phuix-formation-flank-view' => '6648270a',
     'phuix-formation-view' => 'cef53b3e',
     'phuix-icon-view' => 'a5257c4e',
     'policy-css' => 'ceb56a08',
     'policy-edit-css' => '8794e2ed',
     'policy-transaction-detail-css' => 'c02b8384',
     'ponder-view-css' => '05a09d0a',
     'project-card-view-css' => '4e7371cd',
     'project-triggers-css' => 'cd9c8bb9',
     'project-view-css' => '567858b3',
     'releeph-core' => 'f81ff2db',
     'releeph-preview-branch' => '22db5c07',
     'releeph-request-differential-create-dialog' => '0ac1ea31',
     'releeph-request-typeahead-css' => 'bce37359',
     'setup-issue-css' => '5eed85b2',
     'sprite-login-css' => '18b368a6',
     'sprite-tokens-css' => 'f1896dc5',
     'syntax-default-css' => '055fc231',
     'syntax-highlighting-css' => '220b85f9',
     'tokens-css' => 'ce5a50bd',
     'trigger-rule' => '41b7b4f6',
     'trigger-rule-control' => '5faf27b9',
     'trigger-rule-editor' => 'b49fd60c',
     'trigger-rule-type' => '4feea7d3',
     'typeahead-browse-css' => 'b7ed02d2',
     'unhandled-exception-css' => '9ecfc00d',
   ),
   'requires' => array(
     '0116d3e8' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-stratcom',
     ),
     '01384686' => array(
       'javelin-behavior',
       'javelin-uri',
       'phabricator-notification',
     ),
     '0169e425' => array(
       'javelin-install',
       'javelin-dom',
       'javelin-stratcom',
       'javelin-util',
       'javelin-vector',
       'javelin-magical-init',
     ),
     '022516b4' => array(
       'javelin-install',
       'javelin-util',
       'javelin-websocket',
       'javelin-leader',
       'javelin-json',
     ),
     '02cb4398' => array(
       'javelin-behavior',
       'javelin-dom',
       'phortune-credit-card-form',
     ),
     '030b4f7a' => array(
       'javelin-stratcom',
       'javelin-install',
       'javelin-uri',
       'javelin-util',
     ),
     '0392a5d8' => array(
       'javelin-install',
     ),
     '03e8891f' => array(
       'javelin-install',
     ),
     '04f8a1e3' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-dom',
       'javelin-workflow',
     ),
     '05d290ef' => array(
       'javelin-install',
       'javelin-util',
     ),
     '070679fe' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-dom',
       'javelin-uri',
       'phabricator-notification',
     ),
     '074f0783' => array(
       'javelin-install',
       'javelin-dom',
       'javelin-vector',
       'javelin-request',
       'javelin-uri',
     ),
     '0889b835' => array(
       'javelin-install',
       'javelin-event',
       'javelin-util',
       'javelin-magical-init',
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       'javelin-util',
       'javelin-dom',
       'javelin-stratcom',
       'javelin-vector',
     ),
     '9623adc1' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-workflow',
       'javelin-dom',
       'javelin-router',
     ),
     '98ef467f' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-request',
       'javelin-util',
     ),
     '995f5102' => array(
       'javelin-install',
       'javelin-util',
       'javelin-request',
       'javelin-router',
     ),
-    '9a3963e0' => array(
-      'javelin-dom',
-    ),
     '9aae2b66' => array(
       'javelin-install',
       'javelin-util',
     ),
     '9c01e364' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-workflow',
     ),
     '9cec214e' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-workflow',
       'javelin-dom',
       'javelin-uri',
       'phabricator-textareautils',
     ),
     '9f081f05' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-stratcom',
       'javelin-workflow',
       'javelin-util',
       'phabricator-keyboard-shortcut',
     ),
+    'a0ef0b54' => array(
+      'javelin-dom',
+    ),
     'a17b84f1' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-workflow',
     ),
     'a241536a' => array(
       'javelin-install',
     ),
     'a2ab19be' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-util',
       'javelin-stratcom',
       'javelin-workflow',
       'phabricator-draggable-list',
     ),
     'a4356cde' => array(
       'javelin-install',
       'javelin-dom',
       'javelin-vector',
       'javelin-util',
     ),
     'a43ae2ae' => array(
       'javelin-install',
       'javelin-dom',
       'javelin-stratcom',
       'javelin-vector',
     ),
     'a4aa75c4' => array(
       'phui-button-css',
       'phui-button-simple-css',
     ),
     'a5257c4e' => array(
       'javelin-install',
       'javelin-dom',
     ),
     'a5cc67cf' => array(
       'phui-inline-comment-view-css',
     ),
     'a77e2cbd' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-dom',
       'javelin-vector',
     ),
     'a8f573a9' => array(
       'javelin-install',
       'javelin-dom',
       'javelin-util',
     ),
     'a9942052' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-view-renderer',
       'javelin-install',
     ),
     'a9b91e3f' => array(
       'javelin-install',
       'javelin-dom',
       'javelin-stratcom',
       'javelin-util',
       'phabricator-notification-css',
     ),
     'aa371860' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-workflow',
       'javelin-dom',
       'phabricator-draggable-list',
     ),
     'aa3a100c' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-typeahead',
       'javelin-typeahead-ondemand-source',
       'javelin-dom',
     ),
     'aa6d2308' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-util',
       'multirow-row-manager',
       'javelin-json',
       'phuix-form-control-view',
     ),
     'ab85e184' => array(
       'javelin-install',
       'javelin-dom',
       'phabricator-notification',
     ),
     'ad258e28' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-chart',
     ),
     'ad486db3' => array(
       'javelin-install',
       'javelin-typeahead',
       'javelin-dom',
       'javelin-request',
       'javelin-typeahead-ondemand-source',
       'javelin-util',
     ),
     'aec8e38c' => array(
       'javelin-dom',
       'javelin-util',
       'javelin-stratcom',
       'javelin-install',
       'javelin-aphlict',
       'javelin-workflow',
       'javelin-router',
       'javelin-behavior-device',
       'javelin-vector',
     ),
     'b105a3a6' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-dom',
     ),
     'b26a41e4' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-dom',
     ),
     'b347a301' => array(
       'javelin-behavior',
     ),
     'b46d88c5' => array(
       'javelin-install',
       'javelin-dom',
       'javelin-util',
       'javelin-stratcom',
       'javelin-workflow',
       'phabricator-draggable-list',
       'javelin-workboard-column',
       'javelin-workboard-header-template',
       'javelin-workboard-card-template',
       'javelin-workboard-order-template',
     ),
     'b49fd60c' => array(
       'multirow-row-manager',
       'trigger-rule',
     ),
     'b517bfa0' => array(
       'phui-oi-list-view-css',
     ),
     'b58d1a2a' => array(
       'javelin-behavior',
       'javelin-behavior-device',
       'javelin-stratcom',
       'javelin-vector',
       'javelin-dom',
       'javelin-magical-init',
     ),
     'b5e9bff9' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-dom',
     ),
     'b7b73831' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-util',
       'phabricator-shaped-request',
     ),
     'b86ef6c2' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-stratcom',
       'phabricator-tooltip',
       'phabricator-diff-changeset-list',
       'phabricator-diff-changeset',
       'phuix-formation-view',
     ),
     'b86f297f' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-workflow',
       'javelin-dom',
       'phabricator-draggable-list',
     ),
     'b9109f8f' => array(
       'javelin-behavior',
       'javelin-uri',
       'phabricator-notification',
     ),
     'b9d0c2f3' => array(
       'javelin-install',
       'javelin-dom',
       'javelin-util',
       'javelin-vector',
       'javelin-stratcom',
       'javelin-workflow',
       'phabricator-drag-and-drop-file-upload',
       'javelin-workboard-board',
     ),
     'bcec20f0' => array(
       'phui-theme-css',
     ),
     'c03f2fb4' => array(
       'javelin-install',
     ),
     'c2c500a7' => array(
       'javelin-install',
       'javelin-dom',
       'phuix-button-view',
     ),
     'c3703a16' => array(
       'javelin-behavior',
       'javelin-aphlict',
       'phabricator-phtize',
       'javelin-dom',
     ),
     'c3d24e63' => array(
       'javelin-install',
       'javelin-workboard-card',
       'javelin-workboard-header',
     ),
     'c687e867' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-stratcom',
       'javelin-workflow',
       'javelin-fx',
       'javelin-util',
     ),
     'c68f183f' => array(
       'javelin-install',
       'javelin-dom',
     ),
     'c715c123' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-util',
       'javelin-workflow',
       'javelin-json',
     ),
     'c7e748bf' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-dom',
       'javelin-mask',
       'javelin-util',
       'phuix-icon-view',
       'phabricator-busy',
     ),
     'cef53b3e' => array(
       'javelin-install',
       'javelin-dom',
       'phuix-formation-column-view',
       'phuix-formation-flank-view',
     ),
     'cf32921f' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-stratcom',
     ),
     'd12d214f' => array(
       'javelin-install',
       'javelin-dom',
       'javelin-json',
       'javelin-workflow',
       'javelin-util',
     ),
     'd3799cb4' => array(
       'javelin-install',
     ),
     'd4cc2d2a' => array(
       'javelin-install',
     ),
     'd8a86cfb' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-util',
       'phabricator-shaped-request',
     ),
     'da15d3dc' => array(
       'phui-oi-list-view-css',
     ),
     'dae2d55b' => array(
       'javelin-behavior',
       'javelin-uri',
       'phabricator-notification',
     ),
     'e150bd50' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-dom',
       'phuix-dropdown-menu',
     ),
     'e5bdb730' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-workflow',
       'javelin-dom',
       'phabricator-draggable-list',
     ),
     'e8240b50' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-dom',
     ),
     'e9a2940f' => array(
       'javelin-behavior',
       'javelin-request',
       'javelin-stratcom',
       'javelin-vector',
       'javelin-dom',
       'javelin-uri',
       'javelin-behavior-device',
       'phabricator-title',
       'phabricator-favicon',
     ),
     'e9c80beb' => array(
       'javelin-install',
       'javelin-event',
     ),
     'ebe83a6b' => array(
       'javelin-install',
     ),
     'ec4e31c0' => array(
       'phui-timeline-view-css',
     ),
     'ee77366f' => array(
       'aphront-dialog-view-css',
     ),
     'ef836bf2' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-stratcom',
     ),
     'f340a484' => array(
       'javelin-install',
       'javelin-dom',
       'javelin-vector',
     ),
     'f84bcbf4' => array(
       'javelin-behavior',
       'javelin-stratcom',
       'javelin-dom',
     ),
     'f8c4e135' => array(
       'javelin-install',
       'javelin-dom',
       'javelin-view-visitor',
       'javelin-util',
     ),
     'fa6f30b2' => array(
       'javelin-behavior',
       'javelin-dom',
       'javelin-stratcom',
       'javelin-behavior-device',
       'javelin-scrollbar',
       'javelin-quicksand',
       'phabricator-keyboard-shortcut',
       'conpherence-thread-manager',
     ),
     'fa74cc35' => array(
       'phui-oi-list-view-css',
     ),
     'fdc13e4e' => array(
       'javelin-install',
     ),
     'ff688a7a' => array(
       'owners-path-editor',
       'javelin-behavior',
     ),
     'ff7b3f22' => array(
       'javelin-behavior',
       'javelin-dom',
     ),
   ),
   'packages' => array(
     'conpherence.pkg.css' => array(
       'conpherence-menu-css',
       'conpherence-color-css',
       'conpherence-message-pane-css',
       'conpherence-notification-css',
       'conpherence-transaction-css',
       'conpherence-participant-pane-css',
       'conpherence-header-pane-css',
     ),
     'conpherence.pkg.js' => array(
       'javelin-behavior-conpherence-menu',
       'javelin-behavior-conpherence-participant-pane',
       'javelin-behavior-conpherence-pontificate',
       'javelin-behavior-toggle-widget',
     ),
     'core.pkg.css' => array(
       'phabricator-core-css',
       'phabricator-zindex-css',
       'phui-button-css',
       'phui-button-simple-css',
       'phui-theme-css',
       'phabricator-standard-page-view',
       'aphront-dialog-view-css',
       'phui-form-view-css',
       'aphront-panel-view-css',
       'aphront-table-view-css',
       'aphront-tokenizer-control-css',
       'aphront-typeahead-control-css',
       'aphront-list-filter-view-css',
       'application-search-view-css',
       'phabricator-remarkup-css',
       'syntax-highlighting-css',
       'syntax-default-css',
       'phui-pager-css',
       'aphront-tooltip-css',
       'phabricator-flag-css',
       'phui-info-view-css',
       'phabricator-main-menu-view',
       'phabricator-notification-css',
       'phabricator-notification-menu-css',
       'phui-lightbox-css',
       'phui-comment-panel-css',
       'phui-header-view-css',
       'phabricator-nav-view-css',
       'phui-basic-nav-view-css',
       'phui-crumbs-view-css',
       'phui-oi-list-view-css',
       'phui-oi-color-css',
       'phui-oi-big-ui-css',
       'phui-oi-drag-ui-css',
       'phui-oi-simple-ui-css',
       'phui-oi-flush-ui-css',
       'global-drag-and-drop-css',
       'phui-spacing-css',
       'phui-form-css',
       'phui-icon-view-css',
       'phabricator-action-list-view-css',
       'phui-property-list-view-css',
       'phui-tag-view-css',
       'phui-list-view-css',
       'font-fontawesome',
       'font-lato',
       'phui-font-icon-base-css',
       'phui-fontkit-css',
       'phui-box-css',
       'phui-object-box-css',
       'phui-timeline-view-css',
       'phui-two-column-view-css',
       'phui-curtain-view-css',
       'sprite-login-css',
       'sprite-tokens-css',
       'tokens-css',
       'auth-css',
       'phui-status-list-view-css',
       'phui-feed-story-css',
       'phabricator-feed-css',
       'phabricator-dashboard-css',
       'aphront-multi-column-view-css',
       'phui-curtain-object-ref-view-css',
       'phui-comment-form-css',
       'phui-head-thing-view-css',
       'conpherence-durable-column-view',
       'phui-button-bar-css',
     ),
     'core.pkg.js' => array(
       'javelin-util',
       'javelin-install',
       'javelin-event',
       'javelin-stratcom',
       'javelin-behavior',
       'javelin-resource',
       'javelin-request',
       'javelin-vector',
       'javelin-dom',
       'javelin-json',
       'javelin-uri',
       'javelin-workflow',
       'javelin-mask',
       'javelin-typeahead',
       'javelin-typeahead-normalizer',
       'javelin-typeahead-source',
       'javelin-typeahead-preloaded-source',
       'javelin-typeahead-ondemand-source',
       'javelin-tokenizer',
       'javelin-history',
       'javelin-router',
       'javelin-routable',
       'javelin-behavior-aphront-basic-tokenizer',
       'javelin-behavior-workflow',
       'javelin-behavior-aphront-form-disable-on-submit',
       'phabricator-keyboard-shortcut-manager',
       'phabricator-keyboard-shortcut',
       'javelin-behavior-phabricator-keyboard-shortcuts',
       'javelin-behavior-refresh-csrf',
       'javelin-behavior-phabricator-watch-anchor',
       'javelin-behavior-phabricator-autofocus',
       'phuix-dropdown-menu',
       'phuix-action-list-view',
       'phuix-action-view',
       'phuix-icon-view',
       'phabricator-phtize',
       'javelin-behavior-phabricator-oncopy',
       'phabricator-tooltip',
       'javelin-behavior-phabricator-tooltips',
       'phabricator-prefab',
       'javelin-behavior-device',
       'javelin-behavior-toggle-class',
       'javelin-behavior-lightbox-attachments',
       'phabricator-busy',
       'javelin-sound',
       'javelin-aphlict',
       'phabricator-notification',
       'javelin-behavior-aphlict-listen',
       'javelin-behavior-phabricator-search-typeahead',
       'javelin-behavior-aphlict-dropdown',
       'javelin-behavior-history-install',
       'javelin-behavior-phabricator-gesture',
       'javelin-behavior-phabricator-remarkup-assist',
       'phabricator-textareautils',
       'phabricator-file-upload',
       'javelin-behavior-global-drag-and-drop',
       'javelin-behavior-phabricator-reveal-content',
       'phui-hovercard',
       'javelin-behavior-phui-hovercards',
       'javelin-color',
       'javelin-fx',
       'phabricator-draggable-list',
       'javelin-behavior-phabricator-transaction-list',
       'javelin-behavior-phabricator-show-older-transactions',
       'javelin-behavior-phui-dropdown-menu',
       'javelin-behavior-doorkeeper-tag',
       'phabricator-title',
       'javelin-leader',
       'javelin-websocket',
       'javelin-behavior-dashboard-async-panel',
       'javelin-behavior-dashboard-tab-panel',
       'javelin-quicksand',
       'javelin-behavior-quicksand-blacklist',
       'javelin-behavior-high-security-warning',
       'javelin-behavior-read-only-warning',
       'javelin-scrollbar',
       'javelin-behavior-scrollbar',
       'javelin-behavior-durable-column',
       'conpherence-thread-manager',
       'javelin-behavior-detect-timezone',
       'javelin-behavior-setup-check-https',
       'javelin-behavior-aphlict-status',
       'javelin-behavior-user-menu',
       'phabricator-favicon',
       'javelin-behavior-phui-tab-group',
       'javelin-behavior-phui-submenu',
       'phuix-button-view',
       'javelin-behavior-comment-actions',
       'phuix-form-control-view',
       'phuix-autocomplete',
     ),
     'dark-console.pkg.js' => array(
       'javelin-behavior-dark-console',
       'phabricator-darklog',
       'phabricator-darkmessage',
     ),
     'differential.pkg.css' => array(
       'differential-core-view-css',
       'differential-changeset-view-css',
       'differential-revision-history-css',
       'differential-revision-list-css',
       'differential-table-of-contents-css',
       'differential-revision-comment-css',
       'differential-revision-add-comment-css',
       'phabricator-object-selector-css',
       'phabricator-content-source-view-css',
       'inline-comment-summary-css',
       'phui-inline-comment-view-css',
       'diff-tree-view-css',
       'phui-formation-view-css',
     ),
     'differential.pkg.js' => array(
       'phabricator-drag-and-drop-file-upload',
       'phabricator-shaped-request',
       'javelin-behavior-differential-populate',
       'javelin-behavior-differential-diff-radios',
       'javelin-behavior-aphront-drag-and-drop-textarea',
       'javelin-behavior-phabricator-object-selector',
       'javelin-behavior-repository-crossreference',
       'javelin-behavior-aphront-more',
       'phabricator-diff-inline',
       'phabricator-diff-changeset',
       'phabricator-diff-changeset-list',
       'phabricator-diff-tree-view',
       'phabricator-diff-path-view',
       'phuix-formation-view',
       'phuix-formation-column-view',
       'phuix-formation-flank-view',
     ),
     'diffusion.pkg.css' => array(
       'diffusion-icons-css',
     ),
     'diffusion.pkg.js' => array(
       'javelin-behavior-diffusion-pull-lastmodified',
       'javelin-behavior-diffusion-commit-graph',
       'javelin-behavior-audit-preview',
     ),
     'maniphest.pkg.css' => array(
       'maniphest-task-summary-css',
     ),
     'maniphest.pkg.js' => array(
       'javelin-behavior-maniphest-batch-selector',
       'javelin-behavior-maniphest-list-editor',
     ),
   ),
 );
diff --git a/src/applications/differential/parser/DifferentialChangesetParser.php b/src/applications/differential/parser/DifferentialChangesetParser.php
index 102e5b9ea2..9ce06be69d 100644
--- a/src/applications/differential/parser/DifferentialChangesetParser.php
+++ b/src/applications/differential/parser/DifferentialChangesetParser.php
@@ -1,1908 +1,1916 @@
 <?php
 
 final class DifferentialChangesetParser extends Phobject {
 
   const HIGHLIGHT_BYTE_LIMIT = 262144;
 
   protected $visible      = array();
   protected $new          = array();
   protected $old          = array();
   protected $intra        = array();
   protected $depthOnlyLines = array();
   protected $newRender    = null;
   protected $oldRender    = null;
 
   protected $filename     = null;
   protected $hunkStartLines = array();
 
   protected $comments     = array();
   protected $specialAttributes = array();
 
   protected $changeset;
 
   protected $renderCacheKey = null;
 
   private $handles = array();
   private $user;
 
   private $leftSideChangesetID;
   private $leftSideAttachesToNewFile;
 
   private $rightSideChangesetID;
   private $rightSideAttachesToNewFile;
 
   private $originalLeft;
   private $originalRight;
 
   private $renderingReference;
   private $isSubparser;
 
   private $isTopLevel;
 
   private $coverage;
   private $markupEngine;
   private $highlightErrors;
   private $disableCache;
   private $renderer;
   private $highlightingDisabled;
   private $showEditAndReplyLinks = true;
   private $canMarkDone;
   private $objectOwnerPHID;
   private $offsetMode;
 
   private $rangeStart;
   private $rangeEnd;
   private $mask;
   private $linesOfContext = 8;
 
   private $highlightEngine;
   private $viewer;
 
   private $viewState;
 
   public function setRange($start, $end) {
     $this->rangeStart = $start;
     $this->rangeEnd = $end;
     return $this;
   }
 
   public function setMask(array $mask) {
     $this->mask = $mask;
     return $this;
   }
 
   public function renderChangeset() {
     return $this->render($this->rangeStart, $this->rangeEnd, $this->mask);
   }
 
   public function setShowEditAndReplyLinks($bool) {
     $this->showEditAndReplyLinks = $bool;
     return $this;
   }
 
   public function getShowEditAndReplyLinks() {
     return $this->showEditAndReplyLinks;
   }
 
   public function setViewState(PhabricatorChangesetViewState $view_state) {
     $this->viewState = $view_state;
     return $this;
   }
 
   public function getViewState() {
     return $this->viewState;
   }
 
   public function setRenderer(DifferentialChangesetRenderer $renderer) {
     $this->renderer = $renderer;
     return $this;
   }
 
   public function getRenderer() {
     return $this->renderer;
   }
 
   public function setDisableCache($disable_cache) {
     $this->disableCache = $disable_cache;
     return $this;
   }
 
   public function getDisableCache() {
     return $this->disableCache;
   }
 
   public function setCanMarkDone($can_mark_done) {
     $this->canMarkDone = $can_mark_done;
     return $this;
   }
 
   public function getCanMarkDone() {
     return $this->canMarkDone;
   }
 
   public function setObjectOwnerPHID($phid) {
     $this->objectOwnerPHID = $phid;
     return $this;
   }
 
   public function getObjectOwnerPHID() {
     return $this->objectOwnerPHID;
   }
 
   public function setOffsetMode($offset_mode) {
     $this->offsetMode = $offset_mode;
     return $this;
   }
 
   public function getOffsetMode() {
     return $this->offsetMode;
   }
 
   public function setViewer(PhabricatorUser $viewer) {
     $this->viewer = $viewer;
     return $this;
   }
 
   public function getViewer() {
     return $this->viewer;
   }
 
   private function newRenderer() {
     $viewer = $this->getViewer();
     $viewstate = $this->getViewstate();
 
     $renderer_key = $viewstate->getRendererKey();
 
     if ($renderer_key === null) {
       $is_unified = $viewer->compareUserSetting(
         PhabricatorUnifiedDiffsSetting::SETTINGKEY,
         PhabricatorUnifiedDiffsSetting::VALUE_ALWAYS_UNIFIED);
 
       if ($is_unified) {
         $renderer_key = '1up';
       } else {
         $renderer_key = $viewstate->getDefaultDeviceRendererKey();
       }
     }
 
     switch ($renderer_key) {
       case '1up':
         $renderer = new DifferentialChangesetOneUpRenderer();
         break;
       default:
         $renderer = new DifferentialChangesetTwoUpRenderer();
         break;
     }
 
     return $renderer;
   }
 
   const CACHE_VERSION = 14;
   const CACHE_MAX_SIZE = 8e6;
 
   const ATTR_GENERATED  = 'attr:generated';
   const ATTR_DELETED    = 'attr:deleted';
   const ATTR_UNCHANGED  = 'attr:unchanged';
   const ATTR_MOVEAWAY   = 'attr:moveaway';
 
   public function setOldLines(array $lines) {
     $this->old = $lines;
     return $this;
   }
 
   public function setNewLines(array $lines) {
     $this->new = $lines;
     return $this;
   }
 
   public function setSpecialAttributes(array $attributes) {
     $this->specialAttributes = $attributes;
     return $this;
   }
 
   public function setIntraLineDiffs(array $diffs) {
     $this->intra = $diffs;
     return $this;
   }
 
   public function setDepthOnlyLines(array $lines) {
     $this->depthOnlyLines = $lines;
     return $this;
   }
 
   public function getDepthOnlyLines() {
     return $this->depthOnlyLines;
   }
 
   public function setVisibleLinesMask(array $mask) {
     $this->visible = $mask;
     return $this;
   }
 
   public function setLinesOfContext($lines_of_context) {
     $this->linesOfContext = $lines_of_context;
     return $this;
   }
 
   public function getLinesOfContext() {
     return $this->linesOfContext;
   }
 
 
   /**
    * Configure which Changeset comments added to the right side of the visible
    * diff will be attached to. The ID must be the ID of a real Differential
    * Changeset.
    *
    * The complexity here is that we may show an arbitrary side of an arbitrary
    * changeset as either the left or right part of a diff. This method allows
    * the left and right halves of the displayed diff to be correctly mapped to
    * storage changesets.
    *
    * @param id    The Differential Changeset ID that comments added to the right
    *              side of the visible diff should be attached to.
    * @param bool  If true, attach new comments to the right side of the storage
    *              changeset. Note that this may be false, if the left side of
    *              some storage changeset is being shown as the right side of
    *              a display diff.
    * @return this
    */
   public function setRightSideCommentMapping($id, $is_new) {
     $this->rightSideChangesetID = $id;
     $this->rightSideAttachesToNewFile = $is_new;
     return $this;
   }
 
   /**
    * See setRightSideCommentMapping(), but this sets information for the left
    * side of the display diff.
    */
   public function setLeftSideCommentMapping($id, $is_new) {
     $this->leftSideChangesetID = $id;
     $this->leftSideAttachesToNewFile = $is_new;
     return $this;
   }
 
   public function setOriginals(
     DifferentialChangeset $left,
     DifferentialChangeset $right) {
 
     $this->originalLeft = $left;
     $this->originalRight = $right;
     return $this;
   }
 
   public function diffOriginals() {
     $engine = new PhabricatorDifferenceEngine();
     $changeset = $engine->generateChangesetFromFileContent(
       implode('', mpull($this->originalLeft->getHunks(), 'getChanges')),
       implode('', mpull($this->originalRight->getHunks(), 'getChanges')));
 
     $parser = new DifferentialHunkParser();
 
     return $parser->parseHunksForHighlightMasks(
       $changeset->getHunks(),
       $this->originalLeft->getHunks(),
       $this->originalRight->getHunks());
   }
 
   /**
    * Set a key for identifying this changeset in the render cache. If set, the
    * parser will attempt to use the changeset render cache, which can improve
    * performance for frequently-viewed changesets.
    *
    * By default, there is no render cache key and parsers do not use the cache.
    * This is appropriate for rarely-viewed changesets.
    *
    * NOTE: Currently, this key must be a valid Differential Changeset ID.
    *
    * @param   string  Key for identifying this changeset in the render cache.
    * @return  this
    */
   public function setRenderCacheKey($key) {
     $this->renderCacheKey = $key;
     return $this;
   }
 
   private function getRenderCacheKey() {
     return $this->renderCacheKey;
   }
 
   public function setChangeset(DifferentialChangeset $changeset) {
     $this->changeset = $changeset;
 
     $this->setFilename($changeset->getFilename());
 
     return $this;
   }
 
   public function setRenderingReference($ref) {
     $this->renderingReference = $ref;
     return $this;
   }
 
   private function getRenderingReference() {
     return $this->renderingReference;
   }
 
   public function getChangeset() {
     return $this->changeset;
   }
 
   public function setFilename($filename) {
     $this->filename = $filename;
     return $this;
   }
 
   public function setHandles(array $handles) {
     assert_instances_of($handles, 'PhabricatorObjectHandle');
     $this->handles = $handles;
     return $this;
   }
 
   public function setMarkupEngine(PhabricatorMarkupEngine $engine) {
     $this->markupEngine = $engine;
     return $this;
   }
 
   public function setCoverage($coverage) {
     $this->coverage = $coverage;
     return $this;
   }
   private function getCoverage() {
     return $this->coverage;
   }
 
   public function parseInlineComment(
     PhabricatorInlineComment $comment) {
 
     // Parse only comments which are actually visible.
     if ($this->isCommentVisibleOnRenderedDiff($comment)) {
       $this->comments[] = $comment;
     }
     return $this;
   }
 
   private function loadCache() {
     $render_cache_key = $this->getRenderCacheKey();
     if (!$render_cache_key) {
       return false;
     }
 
     $data = null;
 
     $changeset = new DifferentialChangeset();
     $conn_r = $changeset->establishConnection('r');
     $data = queryfx_one(
       $conn_r,
       'SELECT * FROM %T WHERE id = %d',
       $changeset->getTableName().'_parse_cache',
       $render_cache_key);
 
     if (!$data) {
       return false;
     }
 
     if ($data['cache'][0] == '{') {
       // This is likely an old-style JSON cache which we will not be able to
       // deserialize.
       return false;
     }
 
     $data = unserialize($data['cache']);
     if (!is_array($data) || !$data) {
       return false;
     }
 
     foreach (self::getCacheableProperties() as $cache_key) {
       if (!array_key_exists($cache_key, $data)) {
         // If we're missing a cache key, assume we're looking at an old cache
         // and ignore it.
         return false;
       }
     }
 
     if ($data['cacheVersion'] !== self::CACHE_VERSION) {
       return false;
     }
 
     // Someone displays contents of a partially cached shielded file.
     if (!isset($data['newRender']) && (!$this->isTopLevel || $this->comments)) {
       return false;
     }
 
     unset($data['cacheVersion'], $data['cacheHost']);
     $cache_prop = array_select_keys($data, self::getCacheableProperties());
     foreach ($cache_prop as $cache_key => $v) {
       $this->$cache_key = $v;
     }
 
     return true;
   }
 
   protected static function getCacheableProperties() {
     return array(
       'visible',
       'new',
       'old',
       'intra',
       'depthOnlyLines',
       'newRender',
       'oldRender',
       'specialAttributes',
       'hunkStartLines',
       'cacheVersion',
       'cacheHost',
       'highlightingDisabled',
     );
   }
 
   public function saveCache() {
     if (PhabricatorEnv::isReadOnly()) {
       return false;
     }
 
     if ($this->highlightErrors) {
       return false;
     }
 
     $render_cache_key = $this->getRenderCacheKey();
     if (!$render_cache_key) {
       return false;
     }
 
     $cache = array();
     foreach (self::getCacheableProperties() as $cache_key) {
       switch ($cache_key) {
         case 'cacheVersion':
           $cache[$cache_key] = self::CACHE_VERSION;
           break;
         case 'cacheHost':
           $cache[$cache_key] = php_uname('n');
           break;
         default:
           $cache[$cache_key] = $this->$cache_key;
           break;
       }
     }
     $cache = serialize($cache);
 
     // We don't want to waste too much space by a single changeset.
     if (strlen($cache) > self::CACHE_MAX_SIZE) {
       return;
     }
 
     $changeset = new DifferentialChangeset();
     $conn_w = $changeset->establishConnection('w');
 
     $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
       try {
         queryfx(
           $conn_w,
           'INSERT INTO %T (id, cache, dateCreated) VALUES (%d, %B, %d)
             ON DUPLICATE KEY UPDATE cache = VALUES(cache)',
           DifferentialChangeset::TABLE_CACHE,
           $render_cache_key,
           $cache,
           time());
       } catch (AphrontQueryException $ex) {
         // Ignore these exceptions. A common cause is that the cache is
         // larger than 'max_allowed_packet', in which case we're better off
         // not writing it.
 
         // TODO: It would be nice to tailor this more narrowly.
       }
     unset($unguarded);
   }
 
   private function markGenerated($new_corpus_block = '') {
     $generated_guess = (strpos($new_corpus_block, '@'.'generated') !== false);
 
     if (!$generated_guess) {
       $generated_path_regexps = PhabricatorEnv::getEnvConfig(
         'differential.generated-paths');
       foreach ($generated_path_regexps as $regexp) {
         if (preg_match($regexp, $this->changeset->getFilename())) {
           $generated_guess = true;
           break;
         }
       }
     }
 
     $event = new PhabricatorEvent(
       PhabricatorEventType::TYPE_DIFFERENTIAL_WILLMARKGENERATED,
       array(
         'corpus' => $new_corpus_block,
         'is_generated' => $generated_guess,
       )
     );
     PhutilEventEngine::dispatchEvent($event);
 
     $generated = $event->getValue('is_generated');
 
     $attribute = $this->changeset->isGeneratedChangeset();
     if ($attribute) {
       $generated = true;
     }
 
     $this->specialAttributes[self::ATTR_GENERATED] = $generated;
   }
 
   public function isGenerated() {
     return idx($this->specialAttributes, self::ATTR_GENERATED, false);
   }
 
   public function isDeleted() {
     return idx($this->specialAttributes, self::ATTR_DELETED, false);
   }
 
   public function isUnchanged() {
     return idx($this->specialAttributes, self::ATTR_UNCHANGED, false);
   }
 
   public function isMoveAway() {
     return idx($this->specialAttributes, self::ATTR_MOVEAWAY, false);
   }
 
   private function applyIntraline(&$render, $intra, $corpus) {
 
     foreach ($render as $key => $text) {
       $result = $text;
 
       if (isset($intra[$key])) {
         $result = PhabricatorDifferenceEngine::applyIntralineDiff(
           $result,
           $intra[$key]);
       }
 
       $result = $this->adjustRenderedLineForDisplay($result);
 
       $render[$key] = $result;
     }
   }
 
   private function getHighlightFuture($corpus) {
     $language = $this->getViewState()->getHighlightLanguage();
 
     if (!$language) {
       $language = $this->highlightEngine->getLanguageFromFilename(
         $this->filename);
 
       if (($language != 'txt') &&
           (strlen($corpus) > self::HIGHLIGHT_BYTE_LIMIT)) {
         $this->highlightingDisabled = true;
         $language = 'txt';
       }
     }
 
     return $this->highlightEngine->getHighlightFuture(
       $language,
       $corpus);
   }
 
   protected function processHighlightedSource($data, $result) {
 
     $result_lines = phutil_split_lines($result);
     foreach ($data as $key => $info) {
       if (!$info) {
         unset($result_lines[$key]);
       }
     }
     return $result_lines;
   }
 
   private function tryCacheStuff() {
     $changeset = $this->getChangeset();
     if (!$changeset->hasSourceTextBody()) {
 
       // TODO: This isn't really correct (the change is not "generated"), the
       // intent is just to not render a text body for Subversion directory
       // changes, etc.
       $this->markGenerated();
 
       return;
     }
 
     $viewstate = $this->getViewState();
 
     $skip_cache = false;
 
     if ($this->disableCache) {
       $skip_cache = true;
     }
 
     $character_encoding = $viewstate->getCharacterEncoding();
     if ($character_encoding !== null) {
       $skip_cache = true;
     }
 
     $highlight_language = $viewstate->getHighlightLanguage();
     if ($highlight_language !== null) {
       $skip_cache = true;
     }
 
     if ($skip_cache || !$this->loadCache()) {
       $this->process();
       if (!$skip_cache) {
         $this->saveCache();
       }
     }
   }
 
   private function process() {
     $changeset = $this->changeset;
 
     $hunk_parser = new DifferentialHunkParser();
     $hunk_parser->parseHunksForLineData($changeset->getHunks());
 
     $this->realignDiff($changeset, $hunk_parser);
 
     $hunk_parser->reparseHunksForSpecialAttributes();
 
     $unchanged = false;
     if (!$hunk_parser->getHasAnyChanges()) {
       $filetype = $this->changeset->getFileType();
       if ($filetype == DifferentialChangeType::FILE_TEXT ||
           $filetype == DifferentialChangeType::FILE_SYMLINK) {
         $unchanged = true;
       }
     }
 
     $moveaway = false;
     $changetype = $this->changeset->getChangeType();
     if ($changetype == DifferentialChangeType::TYPE_MOVE_AWAY) {
       $moveaway = true;
     }
 
     $this->setSpecialAttributes(array(
       self::ATTR_UNCHANGED  => $unchanged,
       self::ATTR_DELETED    => $hunk_parser->getIsDeleted(),
       self::ATTR_MOVEAWAY   => $moveaway,
     ));
 
     $lines_context = $this->getLinesOfContext();
 
     $hunk_parser->generateIntraLineDiffs();
     $hunk_parser->generateVisibleLinesMask($lines_context);
 
     $this->setOldLines($hunk_parser->getOldLines());
     $this->setNewLines($hunk_parser->getNewLines());
     $this->setIntraLineDiffs($hunk_parser->getIntraLineDiffs());
     $this->setDepthOnlyLines($hunk_parser->getDepthOnlyLines());
     $this->setVisibleLinesMask($hunk_parser->getVisibleLinesMask());
     $this->hunkStartLines = $hunk_parser->getHunkStartLines(
       $changeset->getHunks());
 
     $new_corpus = $hunk_parser->getNewCorpus();
     $new_corpus_block = implode('', $new_corpus);
     $this->markGenerated($new_corpus_block);
 
     if ($this->isTopLevel &&
         !$this->comments &&
           ($this->isGenerated() ||
            $this->isUnchanged() ||
            $this->isDeleted())) {
       return;
     }
 
     $old_corpus = $hunk_parser->getOldCorpus();
     $old_corpus_block = implode('', $old_corpus);
     $old_future = $this->getHighlightFuture($old_corpus_block);
     $new_future = $this->getHighlightFuture($new_corpus_block);
     $futures = array(
       'old' => $old_future,
       'new' => $new_future,
     );
     $corpus_blocks = array(
       'old' => $old_corpus_block,
       'new' => $new_corpus_block,
     );
 
     $this->highlightErrors = false;
     foreach (new FutureIterator($futures) as $key => $future) {
       try {
         try {
           $highlighted = $future->resolve();
         } catch (PhutilSyntaxHighlighterException $ex) {
           $this->highlightErrors = true;
           $highlighted = id(new PhutilDefaultSyntaxHighlighter())
             ->getHighlightFuture($corpus_blocks[$key])
             ->resolve();
         }
         switch ($key) {
         case 'old':
           $this->oldRender = $this->processHighlightedSource(
             $this->old,
             $highlighted);
           break;
         case 'new':
           $this->newRender = $this->processHighlightedSource(
             $this->new,
             $highlighted);
           break;
         }
       } catch (Exception $ex) {
         phlog($ex);
         throw $ex;
       }
     }
 
     $this->applyIntraline(
       $this->oldRender,
       ipull($this->intra, 0),
       $old_corpus);
     $this->applyIntraline(
       $this->newRender,
       ipull($this->intra, 1),
       $new_corpus);
   }
 
   private function shouldRenderPropertyChangeHeader($changeset) {
     if (!$this->isTopLevel) {
       // We render properties only at top level; otherwise we get multiple
       // copies of them when a user clicks "Show More".
       return false;
     }
 
     return true;
   }
 
   public function render(
     $range_start  = null,
     $range_len    = null,
     $mask_force   = array()) {
 
     $viewer = $this->getViewer();
 
     $renderer = $this->getRenderer();
     if (!$renderer) {
       $renderer = $this->newRenderer();
       $this->setRenderer($renderer);
     }
 
     // "Top level" renders are initial requests for the whole file, versus
     // requests for a specific range generated by clicking "show more". We
     // generate property changes and "shield" UI elements only for toplevel
     // requests.
     $this->isTopLevel = (($range_start === null) && ($range_len === null));
     $this->highlightEngine = PhabricatorSyntaxHighlighter::newEngine();
 
     $viewstate = $this->getViewState();
 
     $encoding = null;
 
     $character_encoding = $viewstate->getCharacterEncoding();
     if ($character_encoding) {
       // We are forcing this changeset to be interpreted with a specific
       // character encoding, so force all the hunks into that encoding and
       // propagate it to the renderer.
       $encoding = $character_encoding;
       foreach ($this->changeset->getHunks() as $hunk) {
         $hunk->forceEncoding($character_encoding);
       }
     } else {
       // We're just using the default, so tell the renderer what that is
       // (by reading the encoding from the first hunk).
       foreach ($this->changeset->getHunks() as $hunk) {
         $encoding = $hunk->getDataEncoding();
         break;
       }
     }
 
     $this->tryCacheStuff();
 
     // If we're rendering in an offset mode, treat the range numbers as line
     // numbers instead of rendering offsets.
     $offset_mode = $this->getOffsetMode();
     if ($offset_mode) {
       if ($offset_mode == 'new') {
         $offset_map = $this->new;
       } else {
         $offset_map = $this->old;
       }
 
       // NOTE: Inline comments use zero-based lengths. For example, a comment
       // that starts and ends on line 123 has length 0. Rendering considers
       // this range to have length 1. Probably both should agree, but that
       // ship likely sailed long ago. Tweak things here to get the two systems
       // to agree. See PHI985, where this affected mail rendering of inline
       // comments left on the final line of a file.
 
       $range_end = $this->getOffset($offset_map, $range_start + $range_len);
       $range_start = $this->getOffset($offset_map, $range_start);
       $range_len = ($range_end - $range_start) + 1;
     }
 
     $render_pch = $this->shouldRenderPropertyChangeHeader($this->changeset);
 
     $rows = max(
       count($this->old),
       count($this->new));
 
     $renderer = $this->getRenderer()
       ->setUser($this->getViewer())
       ->setChangeset($this->changeset)
       ->setRenderPropertyChangeHeader($render_pch)
       ->setIsTopLevel($this->isTopLevel)
       ->setOldRender($this->oldRender)
       ->setNewRender($this->newRender)
       ->setHunkStartLines($this->hunkStartLines)
       ->setOldChangesetID($this->leftSideChangesetID)
       ->setNewChangesetID($this->rightSideChangesetID)
       ->setOldAttachesToNewFile($this->leftSideAttachesToNewFile)
       ->setNewAttachesToNewFile($this->rightSideAttachesToNewFile)
       ->setCodeCoverage($this->getCoverage())
       ->setRenderingReference($this->getRenderingReference())
       ->setMarkupEngine($this->markupEngine)
       ->setHandles($this->handles)
       ->setOldLines($this->old)
       ->setNewLines($this->new)
       ->setOriginalCharacterEncoding($encoding)
       ->setShowEditAndReplyLinks($this->getShowEditAndReplyLinks())
       ->setCanMarkDone($this->getCanMarkDone())
       ->setObjectOwnerPHID($this->getObjectOwnerPHID())
       ->setHighlightingDisabled($this->highlightingDisabled)
       ->setDepthOnlyLines($this->getDepthOnlyLines());
 
     list($engine, $old_ref, $new_ref) = $this->newDocumentEngine();
     if ($engine) {
       $engine_blocks = $engine->newEngineBlocks(
         $old_ref,
         $new_ref);
     } else {
       $engine_blocks = null;
     }
 
     $has_document_engine = ($engine_blocks !== null);
 
     // Remove empty comments that don't have any unsaved draft data.
     PhabricatorInlineComment::loadAndAttachVersionedDrafts(
       $viewer,
       $this->comments);
     foreach ($this->comments as $key => $comment) {
       if ($comment->isVoidComment($viewer)) {
         unset($this->comments[$key]);
       }
     }
 
     // See T13515. Sometimes, we collapse file content by default: for
     // example, if the file is marked as containing generated code.
 
     // If a file has inline comments, that normally means we never collapse
     // it. However, if the viewer has already collapsed all of the inlines,
     // it's fine to collapse the file.
 
     $expanded_comments = array();
     foreach ($this->comments as $comment) {
       if ($comment->isHidden()) {
         continue;
       }
       $expanded_comments[] = $comment;
     }
 
     $collapsed_count = (count($this->comments) - count($expanded_comments));
 
     $shield_raw = null;
     $shield_text = null;
     $shield_type = null;
     if ($this->isTopLevel && !$expanded_comments && !$has_document_engine) {
       if ($this->isGenerated()) {
         $shield_text = pht(
           'This file contains generated code, which does not normally '.
           'need to be reviewed.');
       } else if ($this->isMoveAway()) {
         // We put an empty shield on these files. Normally, they do not have
         // any diff content anyway. However, if they come through `arc`, they
         // may have content. We don't want to show it (it's not useful) and
         // we bailed out of fully processing it earlier anyway.
 
         // We could show a message like "this file was moved", but we show
         // that as a change header anyway, so it would be redundant. Instead,
         // just render an empty shield to skip rendering the diff body.
         $shield_raw = '';
       } else if ($this->isUnchanged()) {
         $type = 'text';
         if (!$rows) {
           // NOTE: Normally, diffs which don't change files do not include
           // file content (for example, if you "chmod +x" a file and then
           // run "git show", the file content is not available). Similarly,
           // if you move a file from A to B without changing it, diffs normally
           // do not show the file content. In some cases `arc` is able to
           // synthetically generate content for these diffs, but for raw diffs
           // we'll never have it so we need to be prepared to not render a link.
           $type = 'none';
         }
 
         $shield_type = $type;
 
         $type_add = DifferentialChangeType::TYPE_ADD;
         if ($this->changeset->getChangeType() == $type_add) {
           // Although the generic message is sort of accurate in a technical
           // sense, this more-tailored message is less confusing.
           $shield_text = pht('This is an empty file.');
         } else {
           $shield_text = pht('The contents of this file were not changed.');
         }
       } else if ($this->isDeleted()) {
         $shield_text = pht('This file was completely deleted.');
       } else if ($this->changeset->getAffectedLineCount() > 2500) {
         $shield_text = pht(
           'This file has a very large number of changes (%s lines).',
           new PhutilNumber($this->changeset->getAffectedLineCount()));
       }
     }
 
     $shield = null;
     if ($shield_raw !== null) {
       $shield = $shield_raw;
     } else if ($shield_text !== null) {
       if ($shield_type === null) {
         $shield_type = 'default';
       }
 
       // If we have inlines and the shield would normally show the whole file,
       // downgrade it to show only text around the inlines.
       if ($collapsed_count) {
         if ($shield_type === 'text') {
           $shield_type = 'default';
         }
 
         $shield_text = array(
           $shield_text,
           ' ',
           pht(
             'This file has %d collapsed inline comment(s).',
             new PhutilNumber($collapsed_count)),
         );
       }
 
       $shield = $renderer->renderShield($shield_text, $shield_type);
     }
 
     if ($shield !== null) {
       return $renderer->renderChangesetTable($shield);
     }
 
     // This request should render the "undershield" headers if it's a top-level
     // request which made it this far (indicating the changeset has no shield)
     // or it's a request with no mask information (indicating it's the request
     // that removes the rendering shield). Possibly, this second class of
     // request might need to be made more explicit.
     $is_undershield = (empty($mask_force) || $this->isTopLevel);
     $renderer->setIsUndershield($is_undershield);
 
     $old_comments = array();
     $new_comments = array();
     $old_mask = array();
     $new_mask = array();
     $feedback_mask = array();
     $lines_context = $this->getLinesOfContext();
 
     if ($this->comments) {
       // If there are any comments which appear in sections of the file which
       // we don't have, we're going to move them backwards to the closest
       // earlier line. Two cases where this may happen are:
       //
       //   - Porting ghost comments forward into a file which was mostly
       //     deleted.
       //   - Porting ghost comments forward from a full-context diff to a
       //     partial-context diff.
 
       list($old_backmap, $new_backmap) = $this->buildLineBackmaps();
 
       foreach ($this->comments as $comment) {
         $new_side = $this->isCommentOnRightSideWhenDisplayed($comment);
 
         $line = $comment->getLineNumber();
 
         // See T13524. Lint inlines from Harbormaster may not have a line
         // number.
         if ($line === null) {
           $back_line = null;
         } else if ($new_side) {
           $back_line = idx($new_backmap, $line);
         } else {
           $back_line = idx($old_backmap, $line);
         }
 
         if ($back_line != $line) {
           // TODO: This should probably be cleaner, but just be simple and
           // obvious for now.
           $ghost = $comment->getIsGhost();
           if ($ghost) {
             $moved = pht(
               'This comment originally appeared on line %s, but that line '.
               'does not exist in this version of the diff. It has been '.
               'moved backward to the nearest line.',
               new PhutilNumber($line));
             $ghost['reason'] = $ghost['reason']."\n\n".$moved;
             $comment->setIsGhost($ghost);
           }
 
           $comment->setLineNumber($back_line);
           $comment->setLineLength(0);
         }
 
         $start = max($comment->getLineNumber() - $lines_context, 0);
         $end = $comment->getLineNumber() +
           $comment->getLineLength() +
           $lines_context;
         for ($ii = $start; $ii <= $end; $ii++) {
           if ($new_side) {
             $new_mask[$ii] = true;
           } else {
             $old_mask[$ii] = true;
           }
         }
       }
 
       foreach ($this->old as $ii => $old) {
         if (isset($old['line']) && isset($old_mask[$old['line']])) {
           $feedback_mask[$ii] = true;
         }
       }
 
       foreach ($this->new as $ii => $new) {
         if (isset($new['line']) && isset($new_mask[$new['line']])) {
           $feedback_mask[$ii] = true;
         }
       }
 
       $this->comments = id(new PHUIDiffInlineThreader())
         ->reorderAndThreadCommments($this->comments);
 
       foreach ($this->comments as $comment) {
         $final = $comment->getLineNumber() +
           $comment->getLineLength();
         $final = max(1, $final);
         if ($this->isCommentOnRightSideWhenDisplayed($comment)) {
           $new_comments[$final][] = $comment;
         } else {
           $old_comments[$final][] = $comment;
         }
       }
     }
 
     $renderer
       ->setOldComments($old_comments)
       ->setNewComments($new_comments);
 
     if ($engine_blocks !== null) {
       $reference = $this->getRenderingReference();
       $parts = explode('/', $reference);
       if (count($parts) == 2) {
         list($id, $vs) = $parts;
       } else {
         $id = $parts[0];
         $vs = 0;
       }
 
       // If we don't have an explicit "vs" changeset, it's the left side of
       // the "id" changeset.
       if (!$vs) {
         $vs = $id;
       }
 
       $renderer
         ->setDocumentEngine($engine)
         ->setDocumentEngineBlocks($engine_blocks);
 
       return $renderer->renderDocumentEngineBlocks(
         $engine_blocks,
         (string)$id,
         (string)$vs);
     }
 
     // If we've made it here with a type of file we don't know how to render,
     // bail out with a default empty rendering. Normally, we'd expect a
     // document engine to catch these changes before we make it this far.
     switch ($this->changeset->getFileType()) {
       case DifferentialChangeType::FILE_DIRECTORY:
       case DifferentialChangeType::FILE_BINARY:
       case DifferentialChangeType::FILE_IMAGE:
         $output = $renderer->renderChangesetTable(null);
         return $output;
     }
 
     if ($this->originalLeft && $this->originalRight) {
       list($highlight_old, $highlight_new) = $this->diffOriginals();
       $highlight_old = array_flip($highlight_old);
       $highlight_new = array_flip($highlight_new);
       $renderer
         ->setHighlightOld($highlight_old)
         ->setHighlightNew($highlight_new);
     }
     $renderer
       ->setOriginalOld($this->originalLeft)
       ->setOriginalNew($this->originalRight);
 
     if ($range_start === null) {
       $range_start = 0;
     }
     if ($range_len === null) {
       $range_len = $rows;
     }
     $range_len = min($range_len, $rows - $range_start);
 
     list($gaps, $mask) = $this->calculateGapsAndMask(
       $mask_force,
       $feedback_mask,
       $range_start,
       $range_len);
 
     $renderer
       ->setGaps($gaps)
       ->setMask($mask);
 
     $html = $renderer->renderTextChange(
       $range_start,
       $range_len,
       $rows);
 
     return $renderer->renderChangesetTable($html);
   }
 
   /**
    * This function calculates a lot of stuff we need to know to display
    * the diff:
    *
    * Gaps - compute gaps in the visible display diff, where we will render
    * "Show more context" spacers. If a gap is smaller than the context size,
    * we just display it. Otherwise, we record it into $gaps and will render a
    * "show more context" element instead of diff text below. A given $gap
    * is a tuple of $gap_line_number_start and $gap_length.
    *
    * Mask - compute the actual lines that need to be shown (because they
    * are near changes lines, near inline comments, or the request has
    * explicitly asked for them, i.e. resulting from the user clicking
    * "show more"). The $mask returned is a sparsely populated dictionary
    * of $visible_line_number => true.
    *
    * @return array($gaps, $mask)
    */
   private function calculateGapsAndMask(
     $mask_force,
     $feedback_mask,
     $range_start,
     $range_len) {
 
     $lines_context = $this->getLinesOfContext();
 
     $gaps = array();
     $gap_start = 0;
     $in_gap = false;
     $base_mask = $this->visible + $mask_force + $feedback_mask;
     $base_mask[$range_start + $range_len] = true;
     for ($ii = $range_start; $ii <= $range_start + $range_len; $ii++) {
       if (isset($base_mask[$ii])) {
         if ($in_gap) {
           $gap_length = $ii - $gap_start;
           if ($gap_length <= $lines_context) {
             for ($jj = $gap_start; $jj <= $gap_start + $gap_length; $jj++) {
               $base_mask[$jj] = true;
             }
           } else {
             $gaps[] = array($gap_start, $gap_length);
           }
           $in_gap = false;
         }
       } else {
         if (!$in_gap) {
           $gap_start = $ii;
           $in_gap = true;
         }
       }
     }
     $gaps = array_reverse($gaps);
     $mask = $base_mask;
 
     return array($gaps, $mask);
   }
 
   /**
    * Determine if an inline comment will appear on the rendered diff,
    * taking into consideration which halves of which changesets will actually
    * be shown.
    *
    * @param PhabricatorInlineComment Comment to test for visibility.
    * @return bool True if the comment is visible on the rendered diff.
    */
   private function isCommentVisibleOnRenderedDiff(
     PhabricatorInlineComment $comment) {
 
     $changeset_id = $comment->getChangesetID();
     $is_new = $comment->getIsNewFile();
 
     if ($changeset_id == $this->rightSideChangesetID &&
         $is_new == $this->rightSideAttachesToNewFile) {
         return true;
     }
 
     if ($changeset_id == $this->leftSideChangesetID &&
         $is_new == $this->leftSideAttachesToNewFile) {
         return true;
     }
 
     return false;
   }
 
 
   /**
    * Determine if a comment will appear on the right side of the display diff.
    * Note that the comment must appear somewhere on the rendered changeset, as
    * per isCommentVisibleOnRenderedDiff().
    *
    * @param PhabricatorInlineComment Comment to test for display
    *              location.
    * @return bool True for right, false for left.
    */
   private function isCommentOnRightSideWhenDisplayed(
     PhabricatorInlineComment $comment) {
 
     if (!$this->isCommentVisibleOnRenderedDiff($comment)) {
       throw new Exception(pht('Comment is not visible on changeset!'));
     }
 
     $changeset_id = $comment->getChangesetID();
     $is_new = $comment->getIsNewFile();
 
     if ($changeset_id == $this->rightSideChangesetID &&
         $is_new == $this->rightSideAttachesToNewFile) {
       return true;
     }
 
     return false;
   }
 
   /**
    * Parse the 'range' specification that this class and the client-side JS
    * emit to indicate that a user clicked "Show more..." on a diff. Generally,
    * use is something like this:
    *
    *   $spec = $request->getStr('range');
    *   $parsed = DifferentialChangesetParser::parseRangeSpecification($spec);
    *   list($start, $end, $mask) = $parsed;
    *   $parser->render($start, $end, $mask);
    *
    * @param string Range specification, indicating the range of the diff that
    *               should be rendered.
    * @return tuple List of <start, end, mask> suitable for passing to
    *               @{method:render}.
    */
   public static function parseRangeSpecification($spec) {
     $range_s = null;
     $range_e = null;
     $mask = array();
 
     if ($spec) {
       $match = null;
       if (preg_match('@^(\d+)-(\d+)(?:/(\d+)-(\d+))?$@', $spec, $match)) {
         $range_s = (int)$match[1];
         $range_e = (int)$match[2];
         if (count($match) > 3) {
           $start = (int)$match[3];
           $len = (int)$match[4];
           for ($ii = $start; $ii < $start + $len; $ii++) {
             $mask[$ii] = true;
           }
         }
       }
     }
 
     return array($range_s, $range_e, $mask);
   }
 
   /**
    * Render "modified coverage" information; test coverage on modified lines.
    * This synthesizes diff information with unit test information into a useful
    * indicator of how well tested a change is.
    */
   public function renderModifiedCoverage() {
     $na = phutil_tag('em', array(), '-');
 
     $coverage = $this->getCoverage();
     if (!$coverage) {
       return $na;
     }
 
     $covered = 0;
     $not_covered = 0;
 
     foreach ($this->new as $k => $new) {
       if (!$new['line']) {
         continue;
       }
 
       if (!$new['type']) {
         continue;
       }
 
       if (empty($coverage[$new['line'] - 1])) {
         continue;
       }
 
       switch ($coverage[$new['line'] - 1]) {
         case 'C':
           $covered++;
           break;
         case 'U':
           $not_covered++;
           break;
       }
     }
 
     if (!$covered && !$not_covered) {
       return $na;
     }
 
     return sprintf('%d%%', 100 * ($covered / ($covered + $not_covered)));
   }
 
   /**
    * Build maps from lines comments appear on to actual lines.
    */
   private function buildLineBackmaps() {
     $old_back = array();
     $new_back = array();
     foreach ($this->old as $ii => $old) {
       if ($old === null) {
         continue;
       }
       $old_back[$old['line']] = $old['line'];
     }
     foreach ($this->new as $ii => $new) {
       if ($new === null) {
         continue;
       }
       $new_back[$new['line']] = $new['line'];
     }
 
     $max_old_line = 0;
     $max_new_line = 0;
     foreach ($this->comments as $comment) {
       if ($this->isCommentOnRightSideWhenDisplayed($comment)) {
         $max_new_line = max($max_new_line, $comment->getLineNumber());
       } else {
         $max_old_line = max($max_old_line, $comment->getLineNumber());
       }
     }
 
     $cursor = 1;
     for ($ii = 1; $ii <= $max_old_line; $ii++) {
       if (empty($old_back[$ii])) {
         $old_back[$ii] = $cursor;
       } else {
         $cursor = $old_back[$ii];
       }
     }
 
     $cursor = 1;
     for ($ii = 1; $ii <= $max_new_line; $ii++) {
       if (empty($new_back[$ii])) {
         $new_back[$ii] = $cursor;
       } else {
         $cursor = $new_back[$ii];
       }
     }
 
     return array($old_back, $new_back);
   }
 
   private function getOffset(array $map, $line) {
     if (!$map) {
       return null;
     }
 
     $line = (int)$line;
     foreach ($map as $key => $spec) {
       if ($spec && isset($spec['line'])) {
         if ((int)$spec['line'] >= $line) {
           return $key;
         }
       }
     }
 
     return $key;
   }
 
   private function realignDiff(
     DifferentialChangeset $changeset,
     DifferentialHunkParser $hunk_parser) {
     // Normalizing and realigning the diff depends on rediffing the files, and
     // we currently need complete representations of both files to do anything
     // reasonable. If we only have parts of the files, skip realignment.
 
     // We have more than one hunk, so we're definitely missing part of the file.
     $hunks = $changeset->getHunks();
     if (count($hunks) !== 1) {
       return null;
     }
 
     // The first hunk doesn't start at the beginning of the file, so we're
     // missing some context.
     $first_hunk = head($hunks);
     if ($first_hunk->getOldOffset() != 1 || $first_hunk->getNewOffset() != 1) {
       return null;
     }
 
     $old_file = $changeset->makeOldFile();
     $new_file = $changeset->makeNewFile();
     if ($old_file === $new_file) {
       // If the old and new files are exactly identical, the synthetic
       // diff below will give us nonsense and whitespace modes are
       // irrelevant anyway. This occurs when you, e.g., copy a file onto
       // itself in Subversion (see T271).
       return null;
     }
 
 
     $engine = id(new PhabricatorDifferenceEngine())
       ->setNormalize(true);
 
     $normalized_changeset = $engine->generateChangesetFromFileContent(
       $old_file,
       $new_file);
 
     $type_parser = new DifferentialHunkParser();
     $type_parser->parseHunksForLineData($normalized_changeset->getHunks());
 
     $hunk_parser->setNormalized(true);
     $hunk_parser->setOldLineTypeMap($type_parser->getOldLineTypeMap());
     $hunk_parser->setNewLineTypeMap($type_parser->getNewLineTypeMap());
   }
 
   private function adjustRenderedLineForDisplay($line) {
     // IMPORTANT: We're using "str_replace()" against raw HTML here, which can
     // easily become unsafe. The input HTML has already had syntax highlighting
     // and intraline diff highlighting applied, so it's full of "<span />" tags.
 
     static $search;
     static $replace;
     if ($search === null) {
       $rules = $this->newSuspiciousCharacterRules();
 
       $map = array();
       foreach ($rules as $key => $spec) {
         $tag = phutil_tag(
           'span',
           array(
             'data-copy-text' => $key,
             'class' => $spec['class'],
             'title' => $spec['title'],
           ),
           $spec['replacement']);
         $map[$key] = phutil_string_cast($tag);
       }
 
       $search = array_keys($map);
       $replace = array_values($map);
     }
 
     $is_html = false;
     if ($line instanceof PhutilSafeHTML) {
       $is_html = true;
       $line = hsprintf('%s', $line);
     }
 
     $line = phutil_string_cast($line);
 
     // TODO: This should be flexible, eventually.
     $tab_width = 2;
 
     $line = self::replaceTabsWithSpaces($line, $tab_width);
     $line = str_replace($search, $replace, $line);
 
     if ($is_html) {
       $line = phutil_safe_html($line);
     }
 
     return $line;
   }
 
   private function newSuspiciousCharacterRules() {
     // The "title" attributes are cached in the database, so they're
     // intentionally not wrapped in "pht(...)".
 
     $rules = array(
       "\xE2\x80\x8B" => array(
         'title' => 'ZWS',
         'class' => 'suspicious-character',
         'replacement' => '!',
       ),
       "\xC2\xA0" => array(
         'title' => 'NBSP',
         'class' => 'suspicious-character',
         'replacement' => '!',
       ),
       "\x7F" => array(
         'title' => 'DEL (0x7F)',
         'class' => 'suspicious-character',
         'replacement' => "\xE2\x90\xA1",
       ),
     );
 
     // Unicode defines special pictures for the control characters in the
     // range between "0x00" and "0x1F".
 
     $control = array(
       'NULL',
       'SOH',
       'STX',
       'ETX',
       'EOT',
       'ENQ',
       'ACK',
       'BEL',
       'BS',
       null, // "\t" Tab
       null, // "\n" New Line
       'VT',
       'FF',
       null, // "\r" Carriage Return,
       'SO',
       'SI',
       'DLE',
       'DC1',
       'DC2',
       'DC3',
       'DC4',
       'NAK',
       'SYN',
       'ETB',
       'CAN',
       'EM',
       'SUB',
       'ESC',
       'FS',
       'GS',
       'RS',
       'US',
     );
 
     foreach ($control as $idx => $label) {
       if ($label === null) {
         continue;
       }
 
       $rules[chr($idx)] = array(
         'title' => sprintf('%s (0x%02X)', $label, $idx),
         'class' => 'suspicious-character',
         'replacement' => "\xE2\x90".chr(0x80 + $idx),
       );
     }
 
     return $rules;
   }
 
   public static function replaceTabsWithSpaces($line, $tab_width) {
     static $tags = array();
     if (empty($tags[$tab_width])) {
       for ($ii = 1; $ii <= $tab_width; $ii++) {
         $tag = phutil_tag(
           'span',
           array(
             'data-copy-text' => "\t",
           ),
           str_repeat(' ', $ii));
         $tag = phutil_string_cast($tag);
         $tags[$ii] = $tag;
       }
     }
 
     // Expand all prefix tabs until we encounter any non-tab character. This
     // is cheap and often immediately produces the correct result with no
     // further work (and, particularly, no need to handle any unicode cases).
 
     $len = strlen($line);
 
     $head = 0;
     for ($head = 0; $head < $len; $head++) {
       $char = $line[$head];
       if ($char !== "\t") {
         break;
       }
     }
 
     if ($head) {
       if (empty($tags[$tab_width * $head])) {
         $tags[$tab_width * $head] = str_repeat($tags[$tab_width], $head);
       }
       $prefix = $tags[$tab_width * $head];
       $line = substr($line, $head);
     } else {
       $prefix = '';
     }
 
     // If we have no remaining tabs elsewhere in the string after taking care
     // of all the prefix tabs, we're done.
     if (strpos($line, "\t") === false) {
       return $prefix.$line;
     }
 
     $len = strlen($line);
 
     // If the line is particularly long, don't try to do anything special with
     // it. Use a faster approximation of the correct tabstop expansion instead.
     // This usually still arrives at the right result.
     if ($len > 256) {
       return $prefix.str_replace("\t", $tags[$tab_width], $line);
     }
 
     $in_tag = false;
     $pos = 0;
 
     // See PHI1210. If the line only has single-byte characters, we don't need
     // to vectorize it and can avoid an expensive UTF8 call.
 
     $fast_path = preg_match('/^[\x01-\x7F]*\z/', $line);
     if ($fast_path) {
       $replace = array();
       for ($ii = 0; $ii < $len; $ii++) {
         $char = $line[$ii];
         if ($char === '>') {
           $in_tag = false;
           continue;
         }
 
         if ($in_tag) {
           continue;
         }
 
         if ($char === '<') {
           $in_tag = true;
           continue;
         }
 
         if ($char === "\t") {
           $count = $tab_width - ($pos % $tab_width);
           $pos += $count;
           $replace[$ii] = $tags[$count];
           continue;
         }
 
         $pos++;
       }
 
       if ($replace) {
         // Apply replacements starting at the end of the string so they
         // don't mess up the offsets for following replacements.
         $replace = array_reverse($replace, true);
 
         foreach ($replace as $replace_pos => $replacement) {
           $line = substr_replace($line, $replacement, $replace_pos, 1);
         }
       }
     } else {
       $line = phutil_utf8v_combined($line);
       foreach ($line as $key => $char) {
         if ($char === '>') {
           $in_tag = false;
           continue;
         }
 
         if ($in_tag) {
           continue;
         }
 
         if ($char === '<') {
           $in_tag = true;
           continue;
         }
 
         if ($char === "\t") {
           $count = $tab_width - ($pos % $tab_width);
           $pos += $count;
           $line[$key] = $tags[$count];
           continue;
         }
 
         $pos++;
       }
 
       $line = implode('', $line);
     }
 
     return $prefix.$line;
   }
 
   private function newDocumentEngine() {
     $changeset = $this->changeset;
     $viewer = $this->getViewer();
 
     list($old_file, $new_file) = $this->loadFileObjectsForChangeset();
 
     $no_old = !$changeset->hasOldState();
     $no_new = !$changeset->hasNewState();
 
     if ($no_old) {
       $old_ref = null;
     } else {
       $old_ref = id(new PhabricatorDocumentRef())
         ->setName($changeset->getOldFile());
       if ($old_file) {
         $old_ref->setFile($old_file);
       } else {
         $old_data = $this->getRawDocumentEngineData($this->old);
         $old_ref->setData($old_data);
       }
     }
 
     if ($no_new) {
       $new_ref = null;
     } else {
       $new_ref = id(new PhabricatorDocumentRef())
         ->setName($changeset->getFilename());
       if ($new_file) {
         $new_ref->setFile($new_file);
       } else {
         $new_data = $this->getRawDocumentEngineData($this->new);
         $new_ref->setData($new_data);
       }
     }
 
     $old_engines = null;
     if ($old_ref) {
       $old_engines = PhabricatorDocumentEngine::getEnginesForRef(
         $viewer,
         $old_ref);
     }
 
     $new_engines = null;
     if ($new_ref) {
       $new_engines = PhabricatorDocumentEngine::getEnginesForRef(
         $viewer,
         $new_ref);
     }
 
     if ($new_engines !== null && $old_engines !== null) {
       $shared_engines = array_intersect_key($new_engines, $old_engines);
       $default_engine = head_key($new_engines);
     } else if ($new_engines !== null) {
       $shared_engines = $new_engines;
       $default_engine = head_key($shared_engines);
     } else if ($old_engines !== null) {
       $shared_engines = $old_engines;
       $default_engine = head_key($shared_engines);
     } else {
       return null;
     }
 
     foreach ($shared_engines as $key => $shared_engine) {
       if (!$shared_engine->canDiffDocuments($old_ref, $new_ref)) {
         unset($shared_engines[$key]);
       }
     }
 
     $viewstate = $this->getViewState();
 
     $engine_key = $viewstate->getDocumentEngineKey();
     if (strlen($engine_key)) {
       if (isset($shared_engines[$engine_key])) {
         $document_engine = $shared_engines[$engine_key];
       } else {
         $document_engine = null;
       }
     } else {
       // If we aren't rendering with a specific engine, only use a default
       // engine if the best engine for the new file is a shared engine which
       // can diff files. If we're less picky (for example, by accepting any
       // shared engine) we can end up with silly behavior (like ".json" files
       // rendering as Jupyter documents).
 
       if (isset($shared_engines[$default_engine])) {
         $document_engine = $shared_engines[$default_engine];
       } else {
         $document_engine = null;
       }
     }
 
     if ($document_engine) {
       return array(
         $document_engine,
         $old_ref,
         $new_ref);
     }
 
     return null;
   }
 
   private function loadFileObjectsForChangeset() {
     $changeset = $this->changeset;
     $viewer = $this->getViewer();
 
     $old_phid = $changeset->getOldFileObjectPHID();
     $new_phid = $changeset->getNewFileObjectPHID();
 
     $old_file = null;
     $new_file = null;
 
     if ($old_phid || $new_phid) {
       $file_phids = array();
       if ($old_phid) {
         $file_phids[] = $old_phid;
       }
       if ($new_phid) {
         $file_phids[] = $new_phid;
       }
 
       $files = id(new PhabricatorFileQuery())
         ->setViewer($viewer)
         ->withPHIDs($file_phids)
         ->execute();
       $files = mpull($files, null, 'getPHID');
 
       if ($old_phid) {
         $old_file = idx($files, $old_phid);
         if (!$old_file) {
           throw new Exception(
             pht(
               'Failed to load file data for changeset ("%s").',
               $old_phid));
         }
         $changeset->attachOldFileObject($old_file);
       }
 
       if ($new_phid) {
         $new_file = idx($files, $new_phid);
         if (!$new_file) {
           throw new Exception(
             pht(
               'Failed to load file data for changeset ("%s").',
               $new_phid));
         }
         $changeset->attachNewFileObject($new_file);
       }
     }
 
     return array($old_file, $new_file);
   }
 
   public function newChangesetResponse() {
     // NOTE: This has to happen first because it has side effects. Yuck.
     $rendered_changeset = $this->renderChangeset();
 
     $renderer = $this->getRenderer();
     $renderer_key = $renderer->getRendererKey();
 
     $viewstate = $this->getViewState();
 
     $undo_templates = $renderer->renderUndoTemplates();
     foreach ($undo_templates as $key => $undo_template) {
       $undo_templates[$key] = hsprintf('%s', $undo_template);
     }
 
+    $document_engine = $renderer->getDocumentEngine();
+    if ($document_engine) {
+      $document_engine_key = $document_engine->getDocumentEngineKey();
+    } else {
+      $document_engine_key = null;
+    }
+
     $state = array(
       'undoTemplates' => $undo_templates,
       'rendererKey' => $renderer_key,
       'highlight' => $viewstate->getHighlightLanguage(),
       'characterEncoding' => $viewstate->getCharacterEncoding(),
-      'documentEngine' => $viewstate->getDocumentEngineKey(),
+      'requestDocumentEngineKey' => $viewstate->getDocumentEngineKey(),
+      'responseDocumentEngineKey' => $document_engine_key,
       'isHidden' => $viewstate->getHidden(),
     );
 
     return id(new PhabricatorChangesetResponse())
       ->setRenderedChangeset($rendered_changeset)
       ->setChangesetState($state);
   }
 
   private function getRawDocumentEngineData(array $lines) {
     $text = array();
 
     foreach ($lines as $line) {
       if ($line === null) {
         continue;
       }
 
       // If this is a "No newline at end of file." annotation, don't hand it
       // off to the DocumentEngine.
       if ($line['type'] === '\\') {
         continue;
       }
 
       $text[] = $line['text'];
     }
 
     return implode('', $text);
   }
 
 }
diff --git a/src/infrastructure/diff/PhabricatorInlineCommentController.php b/src/infrastructure/diff/PhabricatorInlineCommentController.php
index 529bd34c6e..51ff3f7766 100644
--- a/src/infrastructure/diff/PhabricatorInlineCommentController.php
+++ b/src/infrastructure/diff/PhabricatorInlineCommentController.php
@@ -1,558 +1,561 @@
 <?php
 
 abstract class PhabricatorInlineCommentController
   extends PhabricatorController {
 
   private $containerObject;
 
   abstract protected function createComment();
   abstract protected function newInlineCommentQuery();
   abstract protected function loadCommentForDone($id);
   abstract protected function loadObjectOwnerPHID(
     PhabricatorInlineComment $inline);
   abstract protected function newContainerObject();
 
   final protected function getContainerObject() {
     if ($this->containerObject === null) {
       $object = $this->newContainerObject();
       if (!$object) {
         throw new Exception(
           pht(
             'Failed to load container object for inline comment.'));
       }
       $this->containerObject = $object;
     }
 
     return $this->containerObject;
   }
 
   protected function hideComments(array $ids) {
     throw new PhutilMethodNotImplementedException();
   }
 
   protected function showComments(array $ids) {
     throw new PhutilMethodNotImplementedException();
   }
 
   private $changesetID;
   private $isNewFile;
   private $isOnRight;
   private $lineNumber;
   private $lineLength;
   private $commentText;
   private $operation;
   private $commentID;
   private $renderer;
   private $replyToCommentPHID;
 
   public function getCommentID() {
     return $this->commentID;
   }
 
   public function getOperation() {
     return $this->operation;
   }
 
   public function getCommentText() {
     return $this->commentText;
   }
 
   public function getLineLength() {
     return $this->lineLength;
   }
 
   public function getLineNumber() {
     return $this->lineNumber;
   }
 
   public function getIsOnRight() {
     return $this->isOnRight;
   }
 
   public function getChangesetID() {
     return $this->changesetID;
   }
 
   public function getIsNewFile() {
     return $this->isNewFile;
   }
 
   public function setRenderer($renderer) {
     $this->renderer = $renderer;
     return $this;
   }
 
   public function getRenderer() {
     return $this->renderer;
   }
 
   public function setReplyToCommentPHID($phid) {
     $this->replyToCommentPHID = $phid;
     return $this;
   }
 
   public function getReplyToCommentPHID() {
     return $this->replyToCommentPHID;
   }
 
   public function processRequest() {
     $request = $this->getRequest();
     $viewer = $this->getViewer();
 
     $this->readRequestParameters();
 
     $op = $this->getOperation();
     switch ($op) {
       case 'hide':
       case 'show':
         if (!$request->validateCSRF()) {
           return new Aphront404Response();
         }
 
         $ids = $request->getStrList('ids');
         if ($ids) {
           if ($op == 'hide') {
             $this->hideComments($ids);
           } else {
             $this->showComments($ids);
           }
         }
 
         return id(new AphrontAjaxResponse())->setContent(array());
       case 'done':
         if (!$request->validateCSRF()) {
           return new Aphront404Response();
         }
         $inline = $this->loadCommentForDone($this->getCommentID());
 
         $is_draft_state = false;
         $is_checked = false;
         switch ($inline->getFixedState()) {
           case PhabricatorInlineComment::STATE_DRAFT:
             $next_state = PhabricatorInlineComment::STATE_UNDONE;
             break;
           case PhabricatorInlineComment::STATE_UNDRAFT:
             $next_state = PhabricatorInlineComment::STATE_DONE;
             $is_checked = true;
             break;
           case PhabricatorInlineComment::STATE_DONE:
             $next_state = PhabricatorInlineComment::STATE_UNDRAFT;
             $is_draft_state = true;
             break;
           default:
           case PhabricatorInlineComment::STATE_UNDONE:
             $next_state = PhabricatorInlineComment::STATE_DRAFT;
             $is_draft_state = true;
             $is_checked = true;
             break;
         }
 
         $inline->setFixedState($next_state)->save();
 
         return id(new AphrontAjaxResponse())
           ->setContent(
             array(
               'isChecked' => $is_checked,
               'draftState' => $is_draft_state,
             ));
       case 'delete':
       case 'undelete':
       case 'refdelete':
         if (!$request->validateCSRF()) {
           return new Aphront404Response();
         }
 
         // NOTE: For normal deletes, we just process the delete immediately
         // and show an "Undo" action. For deletes by reference from the
         // preview ("refdelete"), we prompt first (because the "Undo" may
         // not draw, or may not be easy to locate).
 
         if ($op == 'refdelete') {
           if (!$request->isFormPost()) {
             return $this->newDialog()
               ->setTitle(pht('Really delete comment?'))
               ->addHiddenInput('id', $this->getCommentID())
               ->addHiddenInput('op', $op)
               ->appendParagraph(pht('Delete this inline comment?'))
               ->addCancelButton('#')
               ->addSubmitButton(pht('Delete'));
           }
         }
 
         $is_delete = ($op == 'delete' || $op == 'refdelete');
 
         $inline = $this->loadCommentByIDForEdit($this->getCommentID());
 
         if ($is_delete) {
           $inline->setIsDeleted(1);
         } else {
           $inline->setIsDeleted(0);
         }
 
         $this->saveComment($inline);
 
         return $this->buildEmptyResponse();
       case 'edit':
         $inline = $this->loadCommentByIDForEdit($this->getCommentID());
         $text = $this->getCommentText();
 
         if ($request->isFormPost()) {
           if (strlen($text)) {
             $inline
               ->setContent($text)
               ->setIsEditing(false);
 
             $this->saveComment($inline);
 
             return $this->buildRenderedCommentResponse(
               $inline,
               $this->getIsOnRight());
           } else {
             $inline->setIsDeleted(1);
 
             $this->saveComment($inline);
 
             return $this->buildEmptyResponse();
           }
         } else {
           // NOTE: At time of writing, the "editing" state of inlines is
           // preserved by simluating a click on "Edit" when the inline loads.
 
           // In this case, we don't want to "saveComment()", because it
           // recalculates object drafts and purges versioned drafts.
 
           // The recalculation is merely unnecessary (state doesn't change)
           // but purging drafts means that loading a page and then closing it
           // discards your drafts.
 
           // To avoid the purge, only invoke "saveComment()" if we actually
           // have changes to apply.
 
           $is_dirty = false;
           if (!$inline->getIsEditing()) {
             $inline->setIsEditing(true);
             $is_dirty = true;
           }
 
           if (strlen($text)) {
             $inline->setContent($text);
             $is_dirty = true;
           } else {
             PhabricatorInlineComment::loadAndAttachVersionedDrafts(
               $viewer,
               array($inline));
           }
 
           if ($is_dirty) {
             $this->saveComment($inline);
           }
         }
 
         $edit_dialog = $this->buildEditDialog($inline)
           ->setTitle(pht('Edit Inline Comment'));
 
         $view = $this->buildScaffoldForView($edit_dialog);
 
         return $this->newInlineResponse($inline, $view);
       case 'cancel':
         $inline = $this->loadCommentByIDForEdit($this->getCommentID());
 
         $inline->setIsEditing(false);
 
         // If the user uses "Undo" to get into an edited state ("AB"), then
         // clicks cancel to return to the previous state ("A"), we also want
         // to set the stored state back to "A".
         $text = $this->getCommentText();
         if (strlen($text)) {
           $inline->setContent($text);
         }
 
         $content = $inline->getContent();
         if (!strlen($content)) {
           $inline->setIsDeleted(1);
         }
 
         $this->saveComment($inline);
 
         return $this->buildEmptyResponse();
       case 'draft':
         $inline = $this->loadCommentByIDForEdit($this->getCommentID());
 
         $versioned_draft = PhabricatorVersionedDraft::loadOrCreateDraft(
           $inline->getPHID(),
           $viewer->getPHID(),
           $inline->getID());
 
         $text = $this->getCommentText();
 
         $versioned_draft
           ->setProperty('inline.text', $text)
           ->save();
 
         // We have to synchronize the draft engine after saving a versioned
         // draft, because taking an inline comment from "no text, no draft"
         // to "no text, text in a draft" marks the container object as having
         // a draft.
         $draft_engine = $this->newDraftEngine();
         if ($draft_engine) {
           $draft_engine->synchronize();
-        } else {
-          phlog('no draft engine');
         }
 
         return $this->buildEmptyResponse();
       case 'new':
       case 'reply':
       default:
         // NOTE: We read the values from the client (the display values), not
         // the values from the database (the original values) when replying.
         // In particular, when replying to a ghost comment which was moved
         // across diffs and then moved backward to the most recent visible
         // line, we want to reply on the display line (which exists), not on
         // the comment's original line (which may not exist in this changeset).
         $is_new = $this->getIsNewFile();
         $number = $this->getLineNumber();
         $length = $this->getLineLength();
 
         $inline = $this->createComment()
           ->setChangesetID($this->getChangesetID())
           ->setAuthorPHID($viewer->getPHID())
           ->setIsNewFile($is_new)
           ->setLineNumber($number)
           ->setLineLength($length)
-          ->setContent($this->getCommentText())
+          ->setContent((string)$this->getCommentText())
           ->setReplyToCommentPHID($this->getReplyToCommentPHID())
           ->setIsEditing(true);
 
+        $document_engine_key = $request->getStr('documentEngineKey');
+        if ($document_engine_key !== null) {
+          $inline->setDocumentEngineKey($document_engine_key);
+        }
+
         // If you own this object, mark your own inlines as "Done" by default.
         $owner_phid = $this->loadObjectOwnerPHID($inline);
         if ($owner_phid) {
           if ($viewer->getPHID() == $owner_phid) {
             $fixed_state = PhabricatorInlineComment::STATE_DRAFT;
             $inline->setFixedState($fixed_state);
           }
         }
 
         $this->saveComment($inline);
 
         $edit_dialog = $this->buildEditDialog($inline);
 
         if ($this->getOperation() == 'reply') {
           $edit_dialog->setTitle(pht('Reply to Inline Comment'));
         } else {
           $edit_dialog->setTitle(pht('New Inline Comment'));
         }
 
         $view = $this->buildScaffoldForView($edit_dialog);
 
         return $this->newInlineResponse($inline, $view);
     }
   }
 
   private function readRequestParameters() {
     $request = $this->getRequest();
 
     // NOTE: This isn't necessarily a DifferentialChangeset ID, just an
     // application identifier for the changeset. In Diffusion, it's a Path ID.
     $this->changesetID = $request->getInt('changesetID');
 
     $this->isNewFile = (int)$request->getBool('is_new');
     $this->isOnRight = $request->getBool('on_right');
     $this->lineNumber = $request->getInt('number');
     $this->lineLength = $request->getInt('length');
     $this->commentText = $request->getStr('text');
     $this->commentID = $request->getInt('id');
     $this->operation = $request->getStr('op');
     $this->renderer = $request->getStr('renderer');
     $this->replyToCommentPHID = $request->getStr('replyToCommentPHID');
 
     if ($this->getReplyToCommentPHID()) {
       $reply_phid = $this->getReplyToCommentPHID();
       $reply_comment = $this->loadCommentByPHID($reply_phid);
       if (!$reply_comment) {
         throw new Exception(
           pht('Failed to load comment "%s".', $reply_phid));
       }
 
       // When replying, force the new comment into the same location as the
       // old comment. If we don't do this, replying to a ghost comment from
       // diff A while viewing diff B can end up placing the two comments in
       // different places while viewing diff C, because the porting algorithm
       // makes a different decision. Forcing the comments to bind to the same
       // place makes sure they stick together no matter which diff is being
       // viewed. See T10562 for discussion.
 
       $this->changesetID = $reply_comment->getChangesetID();
       $this->isNewFile = $reply_comment->getIsNewFile();
       $this->lineNumber = $reply_comment->getLineNumber();
       $this->lineLength = $reply_comment->getLineLength();
     }
   }
 
   private function buildEditDialog(PhabricatorInlineComment $inline) {
     $request = $this->getRequest();
     $viewer = $this->getViewer();
 
     $edit_dialog = id(new PHUIDiffInlineCommentEditView())
       ->setViewer($viewer)
       ->setInlineComment($inline)
       ->setIsOnRight($this->getIsOnRight())
       ->setRenderer($this->getRenderer());
 
     return $edit_dialog;
   }
 
   private function buildEmptyResponse() {
     return id(new AphrontAjaxResponse())
       ->setContent(
         array(
           'inline' => array(),
           'view' => null,
         ));
   }
 
   private function buildRenderedCommentResponse(
     PhabricatorInlineComment $inline,
     $on_right) {
 
     $request = $this->getRequest();
     $viewer = $this->getViewer();
 
     $engine = new PhabricatorMarkupEngine();
     $engine->setViewer($viewer);
     $engine->addObject(
       $inline,
       PhabricatorInlineComment::MARKUP_FIELD_BODY);
     $engine->process();
 
     $phids = array($viewer->getPHID());
 
     $handles = $this->loadViewerHandles($phids);
     $object_owner_phid = $this->loadObjectOwnerPHID($inline);
 
     $view = id(new PHUIDiffInlineCommentDetailView())
       ->setUser($viewer)
       ->setInlineComment($inline)
       ->setIsOnRight($on_right)
       ->setMarkupEngine($engine)
       ->setHandles($handles)
       ->setEditable(true)
       ->setCanMarkDone(false)
       ->setObjectOwnerPHID($object_owner_phid);
 
     $view = $this->buildScaffoldForView($view);
 
     return $this->newInlineResponse($inline, $view);
   }
 
   private function buildScaffoldForView(PHUIDiffInlineCommentView $view) {
     $renderer = DifferentialChangesetHTMLRenderer::getHTMLRendererByKey(
       $this->getRenderer());
 
     $view = $renderer->getRowScaffoldForInline($view);
 
     return id(new PHUIDiffInlineCommentTableScaffold())
       ->addRowScaffold($view);
   }
 
   private function newInlineResponse(
     PhabricatorInlineComment $inline,
     $view) {
 
     $response = array(
       'inline' => array(
         'id' => $inline->getID(),
       ),
       'view' => hsprintf('%s', $view),
     );
 
     return id(new AphrontAjaxResponse())
       ->setContent($response);
   }
 
   final protected function loadCommentByID($id) {
     $query = $this->newInlineCommentQuery()
       ->withIDs(array($id));
 
     return $this->loadCommentByQuery($query);
   }
 
   final protected function loadCommentByPHID($phid) {
     $query = $this->newInlineCommentQuery()
       ->withPHIDs(array($phid));
 
     return $this->loadCommentByQuery($query);
   }
 
   final protected function loadCommentByIDForEdit($id) {
     $viewer = $this->getViewer();
 
     $query = $this->newInlineCommentQuery()
       ->withIDs(array($id));
 
     $inline = $this->loadCommentByQuery($query);
 
     if (!$inline) {
       throw new Exception(
         pht(
           'Unable to load inline "%s".',
           $id));
     }
 
     if (!$this->canEditInlineComment($viewer, $inline)) {
       throw new Exception(
         pht(
           'Inline comment "%s" is not editable.',
           $id));
     }
 
     return $inline;
   }
 
   private function loadCommentByQuery(
     PhabricatorDiffInlineCommentQuery $query) {
     $viewer = $this->getViewer();
 
     $inline = $query
       ->setViewer($viewer)
       ->executeOne();
 
     if ($inline) {
       $inline = $inline->newInlineCommentObject();
     }
 
     return $inline;
   }
 
   private function saveComment(PhabricatorInlineComment $inline) {
     $viewer = $this->getViewer();
     $draft_engine = $this->newDraftEngine();
 
     $inline->openTransaction();
       $inline->save();
 
       PhabricatorVersionedDraft::purgeDrafts(
         $inline->getPHID(),
         $viewer->getPHID());
 
       if ($draft_engine) {
         $draft_engine->synchronize();
       }
 
     $inline->saveTransaction();
   }
 
   private function newDraftEngine() {
     $viewer = $this->getViewer();
     $object = $this->getContainerObject();
 
     if (!($object instanceof PhabricatorDraftInterface)) {
       return null;
     }
 
     return $object->newDraftEngine()
       ->setObject($object)
       ->setViewer($viewer);
   }
 
 }
diff --git a/src/infrastructure/diff/interface/PhabricatorInlineComment.php b/src/infrastructure/diff/interface/PhabricatorInlineComment.php
index 50079589fc..9de8305ad3 100644
--- a/src/infrastructure/diff/interface/PhabricatorInlineComment.php
+++ b/src/infrastructure/diff/interface/PhabricatorInlineComment.php
@@ -1,323 +1,332 @@
 <?php
 
 abstract class PhabricatorInlineComment
   extends Phobject
   implements
     PhabricatorMarkupInterface {
 
   const MARKUP_FIELD_BODY = 'markup:body';
 
   const STATE_UNDONE = 'undone';
   const STATE_DRAFT = 'draft';
   const STATE_UNDRAFT = 'undraft';
   const STATE_DONE = 'done';
 
   private $storageObject;
   private $syntheticAuthor;
   private $isGhost;
   private $versionedDrafts = array();
 
   public function __clone() {
     $this->storageObject = clone $this->storageObject;
   }
 
   final public static function loadAndAttachVersionedDrafts(
     PhabricatorUser $viewer,
     array $inlines) {
 
     $viewer_phid = $viewer->getPHID();
     if (!$viewer_phid) {
       return;
     }
 
     $inlines = mpull($inlines, null, 'getPHID');
 
     $load = array();
     foreach ($inlines as $key => $inline) {
       if (!$inline->getIsEditing()) {
         continue;
       }
 
       if ($inline->getAuthorPHID() !== $viewer_phid) {
         continue;
       }
 
       $load[$key] = $inline;
     }
 
     if (!$load) {
       return;
     }
 
     $drafts = PhabricatorVersionedDraft::loadDrafts(
       array_keys($load),
       $viewer_phid);
 
     $drafts = mpull($drafts, null, 'getObjectPHID');
     foreach ($inlines as $inline) {
       $draft = idx($drafts, $inline->getPHID());
       $inline->attachVersionedDraftForViewer($viewer, $draft);
     }
   }
 
   public function setSyntheticAuthor($synthetic_author) {
     $this->syntheticAuthor = $synthetic_author;
     return $this;
   }
 
   public function getSyntheticAuthor() {
     return $this->syntheticAuthor;
   }
 
   public function setStorageObject($storage_object) {
     $this->storageObject = $storage_object;
     return $this;
   }
 
   public function getStorageObject() {
     if (!$this->storageObject) {
       $this->storageObject = $this->newStorageObject();
     }
 
     return $this->storageObject;
   }
 
   abstract protected function newStorageObject();
   abstract public function getControllerURI();
 
   abstract public function setChangesetID($id);
   abstract public function getChangesetID();
 
   abstract public function supportsHiding();
   abstract public function isHidden();
 
   public function isDraft() {
     return !$this->getTransactionPHID();
   }
 
   public function getTransactionPHID() {
     return $this->getStorageObject()->getTransactionPHID();
   }
 
   public function isCompatible(PhabricatorInlineComment $comment) {
     return
       ($this->getAuthorPHID() === $comment->getAuthorPHID()) &&
       ($this->getSyntheticAuthor() === $comment->getSyntheticAuthor()) &&
       ($this->getContent() === $comment->getContent());
   }
 
   public function setIsGhost($is_ghost) {
     $this->isGhost = $is_ghost;
     return $this;
   }
 
   public function getIsGhost() {
     return $this->isGhost;
   }
 
   public function setContent($content) {
     $this->getStorageObject()->setContent($content);
     return $this;
   }
 
   public function getContent() {
     return $this->getStorageObject()->getContent();
   }
 
   public function getID() {
     return $this->getStorageObject()->getID();
   }
 
   public function getPHID() {
     return $this->getStorageObject()->getPHID();
   }
 
   public function setIsNewFile($is_new) {
     $this->getStorageObject()->setIsNewFile($is_new);
     return $this;
   }
 
   public function getIsNewFile() {
     return $this->getStorageObject()->getIsNewFile();
   }
 
   public function setFixedState($state) {
     $this->getStorageObject()->setFixedState($state);
     return $this;
   }
 
   public function setHasReplies($has_replies) {
     $this->getStorageObject()->setHasReplies($has_replies);
     return $this;
   }
 
   public function getHasReplies() {
     return $this->getStorageObject()->getHasReplies();
   }
 
   public function getFixedState() {
     return $this->getStorageObject()->getFixedState();
   }
 
   public function setLineNumber($number) {
     $this->getStorageObject()->setLineNumber($number);
     return $this;
   }
 
   public function getLineNumber() {
     return $this->getStorageObject()->getLineNumber();
   }
 
   public function setLineLength($length) {
     $this->getStorageObject()->setLineLength($length);
     return $this;
   }
 
   public function getLineLength() {
     return $this->getStorageObject()->getLineLength();
   }
 
   public function setAuthorPHID($phid) {
     $this->getStorageObject()->setAuthorPHID($phid);
     return $this;
   }
 
   public function getAuthorPHID() {
     return $this->getStorageObject()->getAuthorPHID();
   }
 
   public function setReplyToCommentPHID($phid) {
     $this->getStorageObject()->setReplyToCommentPHID($phid);
     return $this;
   }
 
   public function getReplyToCommentPHID() {
     return $this->getStorageObject()->getReplyToCommentPHID();
   }
 
   public function setIsDeleted($is_deleted) {
     $this->getStorageObject()->setIsDeleted($is_deleted);
     return $this;
   }
 
   public function getIsDeleted() {
     return $this->getStorageObject()->getIsDeleted();
   }
 
   public function setIsEditing($is_editing) {
     $this->getStorageObject()->setAttribute('editing', (bool)$is_editing);
     return $this;
   }
 
   public function getIsEditing() {
     return (bool)$this->getStorageObject()->getAttribute('editing', false);
   }
 
+  public function setDocumentEngineKey($engine_key) {
+    $this->getStorageObject()->setAttribute('documentEngineKey', $engine_key);
+    return $this;
+  }
+
+  public function getDocumentEngineKey() {
+    return $this->getStorageObject()->getAttribute('documentEngineKey');
+  }
+
   public function getDateModified() {
     return $this->getStorageObject()->getDateModified();
   }
 
   public function getDateCreated() {
     return $this->getStorageObject()->getDateCreated();
   }
 
   public function openTransaction() {
     $this->getStorageObject()->openTransaction();
   }
 
   public function saveTransaction() {
     $this->getStorageObject()->saveTransaction();
   }
 
   public function save() {
     $this->getTransactionCommentForSave()->save();
     return $this;
   }
 
   public function delete() {
     $this->getStorageObject()->delete();
     return $this;
   }
 
   public function makeEphemeral() {
     $this->getStorageObject()->makeEphemeral();
     return $this;
   }
 
   public function attachVersionedDraftForViewer(
     PhabricatorUser $viewer,
     PhabricatorVersionedDraft $draft = null) {
 
     $key = $viewer->getCacheFragment();
     $this->versionedDrafts[$key] = $draft;
 
     return $this;
   }
 
   public function hasVersionedDraftForViewer(PhabricatorUser $viewer) {
     $key = $viewer->getCacheFragment();
     return array_key_exists($key, $this->versionedDrafts);
   }
 
   public function getVersionedDraftForViewer(PhabricatorUser $viewer) {
     $key = $viewer->getCacheFragment();
     if (!array_key_exists($key, $this->versionedDrafts)) {
       throw new Exception(
         pht(
           'Versioned draft is not attached for user with fragment "%s".',
           $key));
     }
 
     return $this->versionedDrafts[$key];
   }
 
   public function isVoidComment(PhabricatorUser $viewer) {
     return !strlen($this->getContentForEdit($viewer));
   }
 
   public function getContentForEdit(PhabricatorUser $viewer) {
     $content = $this->getContent();
 
     if (!$this->hasVersionedDraftForViewer($viewer)) {
       return $content;
     }
 
     $versioned_draft = $this->getVersionedDraftForViewer($viewer);
     if (!$versioned_draft) {
       return $content;
     }
 
     $draft_text = $versioned_draft->getProperty('inline.text');
     if ($draft_text === null) {
       return $content;
     }
 
     return $draft_text;
   }
 
 
 /* -(  PhabricatorMarkupInterface Implementation  )-------------------------- */
 
 
   public function getMarkupFieldKey($field) {
     $content = $this->getMarkupText($field);
     return PhabricatorMarkupEngine::digestRemarkupContent($this, $content);
   }
 
   public function newMarkupEngine($field) {
     return PhabricatorMarkupEngine::newDifferentialMarkupEngine();
   }
 
   public function getMarkupText($field) {
     return $this->getContent();
   }
 
   public function didMarkupText($field, $output, PhutilMarkupEngine $engine) {
     return $output;
   }
 
   public function shouldUseMarkupCache($field) {
     return !$this->isDraft();
   }
 
 }
diff --git a/src/infrastructure/diff/view/PHUIDiffInlineCommentView.php b/src/infrastructure/diff/view/PHUIDiffInlineCommentView.php
index 3c3abea400..7c311008bf 100644
--- a/src/infrastructure/diff/view/PHUIDiffInlineCommentView.php
+++ b/src/infrastructure/diff/view/PHUIDiffInlineCommentView.php
@@ -1,99 +1,100 @@
 <?php
 
 abstract class PHUIDiffInlineCommentView extends AphrontView {
 
   private $isOnRight;
   private $renderer;
   private $inlineComment;
 
   public function setInlineComment(PhabricatorInlineComment $comment) {
     $this->inlineComment = $comment;
     return $this;
   }
 
   public function getInlineComment() {
     return $this->inlineComment;
   }
 
   public function getIsOnRight() {
     return $this->isOnRight;
   }
 
   public function setIsOnRight($on_right) {
     $this->isOnRight = $on_right;
     return $this;
   }
 
   public function setRenderer($renderer) {
     $this->renderer = $renderer;
     return $this;
   }
 
   public function getRenderer() {
     return $this->renderer;
   }
 
   public function getScaffoldCellID() {
     return null;
   }
 
   public function isHidden() {
     return false;
   }
 
   public function isHideable() {
     return true;
   }
 
   public function newHiddenIcon() {
     if ($this->isHideable()) {
       return new PHUIDiffRevealIconView();
     } else {
       return null;
     }
   }
 
   protected function getInlineCommentMetadata() {
     $viewer = $this->getViewer();
     $inline = $this->getInlineComment();
 
     $is_synthetic = (bool)$inline->getSyntheticAuthor();
 
     $is_fixed = false;
     switch ($inline->getFixedState()) {
       case PhabricatorInlineComment::STATE_DONE:
       case PhabricatorInlineComment::STATE_DRAFT:
         $is_fixed = true;
         break;
     }
 
     $is_draft_done = false;
     switch ($inline->getFixedState()) {
       case PhabricatorInlineComment::STATE_DRAFT:
       case PhabricatorInlineComment::STATE_UNDRAFT:
         $is_draft_done = true;
         break;
     }
 
     return array(
       'id' => $inline->getID(),
       'phid' => $inline->getPHID(),
       'changesetID' => $inline->getChangesetID(),
       'number' => $inline->getLineNumber(),
       'length' => $inline->getLineLength(),
       'isNewFile' => (bool)$inline->getIsNewFile(),
       'original' => $inline->getContent(),
       'replyToCommentPHID' => $inline->getReplyToCommentPHID(),
       'isDraft' => $inline->isDraft(),
       'isFixed' => $is_fixed,
       'isGhost' => $inline->getIsGhost(),
       'isSynthetic' => $is_synthetic,
       'isDraftDone' => $is_draft_done,
       'isEditing' => $inline->getIsEditing(),
+      'documentEngineKey' => $inline->getDocumentEngineKey(),
 
       'on_right' => $this->getIsOnRight(),
     );
   }
 
 
 }
diff --git a/webroot/rsrc/js/application/diff/DiffChangeset.js b/webroot/rsrc/js/application/diff/DiffChangeset.js
index a6891dabcb..3b45d586b5 100644
--- a/webroot/rsrc/js/application/diff/DiffChangeset.js
+++ b/webroot/rsrc/js/application/diff/DiffChangeset.js
@@ -1,1040 +1,1046 @@
 /**
  * @provides phabricator-diff-changeset
  * @requires javelin-dom
  *           javelin-util
  *           javelin-stratcom
  *           javelin-install
  *           javelin-workflow
  *           javelin-router
  *           javelin-behavior-device
  *           javelin-vector
  *           phabricator-diff-inline
  *           phabricator-diff-path-view
  *           phuix-button-view
  * @javelin
  */
 
 JX.install('DiffChangeset', {
 
   construct : function(node) {
     this._node = node;
 
     var data = this._getNodeData();
 
     this._renderURI = data.renderURI;
     this._ref = data.ref;
     this._loaded = data.loaded;
     this._treeNodeID = data.treeNodeID;
 
     this._leftID = data.left;
     this._rightID = data.right;
 
     this._displayPath = JX.$H(data.displayPath);
     this._pathParts = data.pathParts;
     this._icon = data.icon;
 
     this._editorURI = data.editorURI;
     this._editorConfigureURI = data.editorConfigureURI;
     this._showPathURI = data.showPathURI;
     this._showDirectoryURI = data.showDirectoryURI;
 
     this._pathIconIcon = data.pathIconIcon;
     this._pathIconColor = data.pathIconColor;
     this._isLowImportance = data.isLowImportance;
     this._isOwned = data.isOwned;
     this._isLoading = true;
 
     this._inlines = [];
 
     if (data.changesetState) {
       this._loadChangesetState(data.changesetState);
     }
 
     var onselect = JX.bind(this, this._onClickHeader);
     JX.DOM.listen(this._node, 'mousedown', 'changeset-header', onselect);
   },
 
   members: {
     _node: null,
     _loaded: false,
     _sequence: 0,
     _stabilize: false,
 
     _renderURI: null,
     _ref: null,
     _rendererKey: null,
     _highlight: null,
-    _documentEngine: null,
+    _requestDocumentEngineKey: null,
+    _responseDocumentEngineKey: null,
     _characterEncoding: null,
     _undoTemplates: null,
 
     _leftID: null,
     _rightID: null,
 
     _inlines: null,
     _visible: true,
 
     _displayPath: null,
 
     _changesetList: null,
     _icon: null,
 
     _editorURI: null,
     _editorConfigureURI: null,
     _showPathURI: null,
     _showDirectoryURI: null,
 
     _pathView: null,
 
     _pathIconIcon: null,
     _pathIconColor: null,
     _isLowImportance: null,
     _isOwned: null,
     _isHidden: null,
     _isSelected: false,
     _viewMenu: null,
 
     getEditorURI: function() {
       return this._editorURI;
     },
 
     getEditorConfigureURI: function() {
       return this._editorConfigureURI;
     },
 
     getShowPathURI: function() {
       return this._showPathURI;
     },
 
     getShowDirectoryURI: function() {
       return this._showDirectoryURI;
     },
 
     getLeftChangesetID: function() {
       return this._leftID;
     },
 
     getRightChangesetID: function() {
       return this._rightID;
     },
 
     setChangesetList: function(list) {
       this._changesetList = list;
       return this;
     },
 
     setViewMenu: function(menu) {
       this._viewMenu = menu;
       return this;
     },
 
     getIcon: function() {
       if (!this._visible) {
         return 'fa-file-o';
       }
 
       return this._icon;
     },
 
     getColor: function() {
       if (!this._visible) {
         return 'grey';
       }
 
       return 'blue';
     },
 
     getChangesetList: function() {
       return this._changesetList;
     },
 
     /**
      * Has the content of this changeset been loaded?
      *
      * This method returns `true` if a request has been fired, even if the
      * response has not returned yet.
      *
      * @return bool True if the content has been loaded.
      */
     isLoaded: function() {
       return this._loaded;
     },
 
 
     /**
      * Configure stabilization of the document position on content load.
      *
      * When we dump the changeset into the document, we can try to stabilize
      * the document scroll position so that the user doesn't feel like they
      * are jumping around as things load in. This is generally useful when
      * populating initial changes.
      *
      * However, if a user explicitly requests a content load by clicking a
      * "Load" link or using the dropdown menu, this stabilization generally
      * feels unnatural, so we don't use it in response to explicit user action.
      *
      * @param bool  True to stabilize the next content fill.
      * @return this
      */
     setStabilize: function(stabilize) {
       this._stabilize = stabilize;
       return this;
     },
 
 
     /**
      * Should this changeset load immediately when the page loads?
      *
      * Normally, changes load immediately, but if a diff or commit is very
      * large we stop doing this and have the user load files explicitly, or
      * choose to load everything.
      *
      * @return bool True if the changeset should load automatically when the
      *   page loads.
      */
     shouldAutoload: function() {
       return this._getNodeData().autoload;
     },
 
 
     /**
      * Load this changeset, if it isn't already loading.
      *
      * This fires a request to fill the content of this changeset, provided
      * there isn't already a request in flight. To force a reload, use
      * @{method:reload}.
      *
      * @return this
      */
     load: function() {
       if (this._loaded) {
         return this;
       }
 
       return this.reload();
     },
 
 
     /**
      * Reload the changeset content.
      *
      * This method always issues a request, even if the content is already
      * loading. To load conditionally, use @{method:load}.
      *
      * @return this
      */
     reload: function(state) {
       this._loaded = true;
       this._sequence++;
 
       var workflow = this._newReloadWorkflow(state)
         .setHandler(JX.bind(this, this._onresponse, this._sequence));
 
       this._startContentWorkflow(workflow);
 
       var pht = this.getChangesetList().getTranslations();
 
       JX.DOM.setContent(
         this._getContentFrame(),
         JX.$N(
           'div',
           {className: 'differential-loading'},
           pht('Loading...')));
 
       return this;
     },
 
     _newReloadWorkflow: function(state) {
       var params = this._getViewParameters(state);
       return new JX.Workflow(this._renderURI, params);
     },
 
     /**
      * Load missing context in a changeset.
      *
      * We do this when the user clicks "Show X Lines". We also expand all of
      * the missing context when they "Show All Context".
      *
      * @param string Line range specification, like "0-40/0-20".
      * @param node Row where the context should be rendered after loading.
      * @param bool True if this is a bulk load of multiple context blocks.
      * @return this
      */
     loadContext: function(range, target, bulk) {
       var params = this._getViewParameters();
       params.range = range;
 
       var pht = this.getChangesetList().getTranslations();
 
       var container = JX.DOM.scry(target, 'td')[0];
       JX.DOM.setContent(container, pht('Loading...'));
       JX.DOM.alterClass(target, 'differential-show-more-loading', true);
 
       var workflow = new JX.Workflow(this._renderURI, params)
         .setHandler(JX.bind(this, this._oncontext, target));
 
       if (bulk) {
         // If we're loading a bunch of these because the viewer clicked
         // "Show All Context" or similar, use lower-priority requests
         // and draw a progress bar.
         this._startContentWorkflow(workflow);
       } else {
         // If this is a single click on a context link, use a higher priority
         // load without a chrome change.
         workflow.start();
       }
 
       return this;
     },
 
     loadAllContext: function() {
       var nodes = JX.DOM.scry(this._node, 'tr', 'context-target');
       for (var ii = 0; ii < nodes.length; ii++) {
         var show = JX.DOM.scry(nodes[ii], 'a', 'show-more');
         for (var jj = 0; jj < show.length; jj++) {
           var data = JX.Stratcom.getData(show[jj]);
           if (data.type != 'all') {
             continue;
           }
           this.loadContext(data.range, nodes[ii], true);
         }
       }
     },
 
     _startContentWorkflow: function(workflow) {
       var routable = workflow.getRoutable();
 
       routable
         .setPriority(500)
         .setType('content')
         .setKey(this._getRoutableKey());
 
       JX.Router.getInstance().queue(routable);
     },
 
     getDisplayPath: function() {
       return this._displayPath;
     },
 
     /**
      * Receive a response to a context request.
      */
     _oncontext: function(target, response) {
       // TODO: This should be better structured.
       // If the response comes back with several top-level nodes, the last one
       // is the actual context; the others are headers. Add any headers first,
       // then copy the new rows into the document.
       var markup = JX.$H(response.changeset).getFragment();
       var len = markup.childNodes.length;
       var diff = JX.DOM.findAbove(target, 'table', 'differential-diff');
 
       for (var ii = 0; ii < len - 1; ii++) {
         diff.parentNode.insertBefore(markup.firstChild, diff);
       }
 
       var table = markup.firstChild;
       var root = target.parentNode;
       this._moveRows(table, root, target);
       root.removeChild(target);
 
       this._onchangesetresponse(response);
     },
 
     _moveRows: function(src, dst, before) {
       var rows = JX.DOM.scry(src, 'tr');
       for (var ii = 0; ii < rows.length; ii++) {
 
         // Find the table this <tr /> belongs to. If it's a sub-table, like a
         // table in an inline comment, don't copy it.
         if (JX.DOM.findAbove(rows[ii], 'table') !== src) {
           continue;
         }
 
         if (before) {
           dst.insertBefore(rows[ii], before);
         } else {
           dst.appendChild(rows[ii]);
         }
       }
     },
 
     /**
      * Get parameters which define the current rendering options.
      */
     _getViewParameters: function(state) {
       var parameters = {
         ref: this._ref,
         device: this._getDefaultDeviceRenderer()
       };
 
       if (state) {
         JX.copy(parameters, state);
       }
 
       return parameters;
     },
 
     /**
      * Get the active @{class:JX.Routable} for this changeset.
      *
      * After issuing a request with @{method:load} or @{method:reload}, you
      * can adjust routable settings (like priority) by querying the routable
      * with this method. Note that there may not be a current routable.
      *
      * @return JX.Routable|null Active routable, if one exists.
      */
     getRoutable: function() {
       return JX.Router.getInstance().getRoutableByKey(this._getRoutableKey());
     },
 
     getRendererKey: function() {
       return this._rendererKey;
     },
 
     _getDefaultDeviceRenderer: function() {
       // NOTE: If you load the page at one device resolution and then resize to
       // a different one we don't re-render the diffs, because it's a
       // complicated mess and you could lose inline comments, cursor positions,
       // etc.
       return (JX.Device.getDevice() == 'desktop') ? '2up' : '1up';
     },
 
     getUndoTemplates: function() {
       return this._undoTemplates;
     },
 
     getCharacterEncoding: function() {
       return this._characterEncoding;
     },
 
     getHighlight: function() {
       return this._highlight;
     },
 
-    getDocumentEngine: function(engine) {
-      return this._documentEngine;
+    getRequestDocumentEngineKey: function() {
+      return this._requestDocumentEngineKey;
+    },
+
+    getResponseDocumentEngineKey: function() {
+      return this._responseDocumentEngineKey;
     },
 
     getSelectableItems: function() {
       var items = [];
 
       items.push({
         type: 'file',
         changeset: this,
         target: this,
         nodes: {
           begin: this._node,
           end: null
         }
       });
 
       if (!this._visible) {
         return items;
       }
 
       var rows = JX.DOM.scry(this._node, 'tr');
 
       var blocks = [];
       var block;
       var ii;
       for (ii = 0; ii < rows.length; ii++) {
         var type = this._getRowType(rows[ii]);
 
         if (!block || (block.type !== type)) {
           block = {
             type: type,
             items: []
           };
           blocks.push(block);
         }
 
         block.items.push(rows[ii]);
       }
 
       var last_inline = null;
       var last_inline_item = null;
       for (ii = 0; ii < blocks.length; ii++) {
         block = blocks[ii];
 
         if (block.type == 'change') {
           items.push({
             type: block.type,
             changeset: this,
             target: block.items[0],
             nodes: {
               begin: block.items[0],
               end: block.items[block.items.length - 1]
             }
           });
         }
 
         if (block.type == 'comment') {
           for (var jj = 0; jj < block.items.length; jj++) {
             var inline = this.getInlineForRow(block.items[jj]);
 
             // When comments are being edited, they have a hidden row with
             // the actual comment and then a visible row with the editor.
 
             // In this case, we only want to generate one item, but it should
             // use the editor as a scroll target. To accomplish this, check if
             // this row has the same inline as the previous row. If so, update
             // the last item to use this row's nodes.
 
             if (inline === last_inline) {
               last_inline_item.nodes.begin = block.items[jj];
               last_inline_item.nodes.end = block.items[jj];
               continue;
             } else {
               last_inline = inline;
             }
 
             var is_saved = (!inline.isDraft() && !inline.isEditing());
 
             last_inline_item = {
               type: block.type,
               changeset: this,
               target: inline,
               hidden: inline.isHidden(),
               collapsed: inline.isCollapsed(),
               deleted: !inline.getID() && !inline.isEditing(),
               nodes: {
                 begin: block.items[jj],
                 end: block.items[jj]
               },
               attributes: {
                 unsaved: inline.isEditing(),
                 anyDraft: inline.isDraft() || inline.isDraftDone(),
                 undone: (is_saved && !inline.isDone()),
                 done: (is_saved && inline.isDone())
               }
             };
 
             items.push(last_inline_item);
           }
         }
       }
 
       return items;
     },
 
     _getRowType: function(row) {
       // NOTE: Don't do "className.indexOf()" elsewhere. This is evil legacy
       // magic.
 
       if (row.className.indexOf('inline') !== -1) {
         return 'comment';
       }
 
       var cells = JX.DOM.scry(row, 'td');
       for (var ii = 0; ii < cells.length; ii++) {
         if (cells[ii].className.indexOf('old') !== -1 ||
             cells[ii].className.indexOf('new') !== -1) {
           return 'change';
         }
       }
     },
 
     _getNodeData: function() {
       return JX.Stratcom.getData(this._node);
     },
 
     getVectors: function() {
       return {
         pos: JX.$V(this._node),
         dim: JX.Vector.getDim(this._node)
       };
     },
 
     _onresponse: function(sequence, response) {
       if (sequence != this._sequence) {
         // If this isn't the most recent request, ignore it. This normally
         // means the user changed view settings between the time the page loaded
         // and the content filled.
         return;
       }
 
       // As we populate the changeset list, we try to hold the document scroll
       // position steady, so that, e.g., users who want to leave a comment on a
       // diff with a large number of changes don't constantly have the text
       // area scrolled off the bottom of the screen until the entire diff loads.
       //
       // There are several major cases here:
       //
       //  - If we're near the top of the document, never scroll.
       //  - If we're near the bottom of the document, always scroll, unless
       //    we have an anchor.
       //  - Otherwise, scroll if the changes were above (or, at least,
       //    almost entirely above) the viewport.
       //
       // We don't scroll if the changes were just near the top of the viewport
       // because this makes us scroll incorrectly when an anchored change is
       // visible. See T12779.
 
       var target = this._node;
 
       var old_pos = JX.Vector.getScroll();
       var old_view = JX.Vector.getViewport();
       var old_dim = JX.Vector.getDocument();
 
       // Number of pixels away from the top or bottom of the document which
       // count as "nearby".
       var sticky = 480;
 
       var near_top = (old_pos.y <= sticky);
       var near_bot = ((old_pos.y + old_view.y) >= (old_dim.y - sticky));
 
       // If we have an anchor in the URL, never stick to the bottom of the
       // page. See T11784 for discussion.
       if (window.location.hash) {
         near_bot = false;
       }
 
       var target_pos = JX.Vector.getPos(target);
       var target_dim = JX.Vector.getDim(target);
       var target_bot = (target_pos.y + target_dim.y);
 
       // Detect if the changeset is entirely (or, at least, almost entirely)
       // above us. The height here is roughly the height of the persistent
       // banner.
       var above_screen = (target_bot < old_pos.y + 64);
 
       // If we have a URL anchor and are currently nearby, stick to it
       // no matter what.
       var on_target = null;
       if (window.location.hash) {
         try {
           var anchor = JX.$(window.location.hash.replace('#', ''));
           if (anchor) {
             var anchor_pos = JX.$V(anchor);
             if ((anchor_pos.y > old_pos.y) &&
                 (anchor_pos.y < old_pos.y + 96)) {
               on_target = anchor;
             }
           }
         } catch (ignored) {
           // If we have a bogus anchor, just ignore it.
         }
       }
 
       var frame = this._getContentFrame();
       JX.DOM.setContent(frame, JX.$H(response.changeset));
 
       if (this._stabilize) {
         if (on_target) {
           JX.DOM.scrollToPosition(old_pos.x, JX.$V(on_target).y - 60);
         } else if (!near_top) {
           if (near_bot || above_screen) {
             // Figure out how much taller the document got.
             var delta = (JX.Vector.getDocument().y - old_dim.y);
             JX.DOM.scrollToPosition(old_pos.x, old_pos.y + delta);
           }
         }
         this._stabilize = false;
       }
 
       this._onchangesetresponse(response);
     },
 
     _onchangesetresponse: function(response) {
       // Code shared by autoload and context responses.
 
       this._loadChangesetState(response);
 
       JX.Stratcom.invoke('differential-inline-comment-refresh');
 
       this._rebuildAllInlines();
 
       JX.Stratcom.invoke('resize');
     },
 
     _loadChangesetState: function(state) {
       if (state.coverage) {
         for (var k in state.coverage) {
           try {
             JX.DOM.replace(JX.$(k), JX.$H(state.coverage[k]));
           } catch (ignored) {
             // Not terribly important.
           }
         }
       }
 
       if (state.undoTemplates) {
         this._undoTemplates = state.undoTemplates;
       }
 
       this._rendererKey = state.rendererKey;
       this._highlight = state.highlight;
       this._characterEncoding = state.characterEncoding;
-      this._documentEngine = state.documentEngine;
+      this._requestDocumentEngineKey = state.requestDocumentEngineKey;
+      this._responseDocumentEngineKey = state.responseDocumentEngineKey;
       this._isHidden = state.isHidden;
 
       var is_hidden = !this.isVisible();
       if (this._isHidden != is_hidden) {
         this.setVisible(!this._isHidden);
       }
 
       this._isLoading = false;
       this.getPathView().setIsLoading(this._isLoading);
     },
 
     _getContentFrame: function() {
       return JX.DOM.find(this._node, 'div', 'changeset-view-content');
     },
 
     _getRoutableKey: function() {
       return 'changeset-view.' + this._ref + '.' + this._sequence;
     },
 
     getInlineForRow: function(node) {
       var data = JX.Stratcom.getData(node);
 
       if (!data.inline) {
         var inline = new JX.DiffInline()
           .setChangeset(this)
           .bindToRow(node);
 
         this._inlines.push(inline);
       }
 
       return data.inline;
     },
 
     newInlineForRange: function(origin, target) {
       var list = this.getChangesetList();
 
       var src = list.getLineNumberFromHeader(origin);
       var dst = list.getLineNumberFromHeader(target);
 
       var changeset_id = null;
       var side = list.getDisplaySideFromHeader(origin);
       if (side == 'right') {
         changeset_id = this.getRightChangesetID();
       } else {
         changeset_id = this.getLeftChangesetID();
       }
 
       var is_new = false;
       if (side == 'right') {
         is_new = true;
       } else if (this.getRightChangesetID() != this.getLeftChangesetID()) {
         is_new = true;
       }
 
       var data = {
         origin: origin,
         target: target,
         number: src,
         length: dst - src,
         changesetID: changeset_id,
         displaySide: side,
         isNewFile: is_new
       };
 
       var inline = new JX.DiffInline()
         .setChangeset(this)
         .bindToRange(data);
 
       this._inlines.push(inline);
 
       inline.create();
 
       return inline;
     },
 
     newInlineReply: function(original, text) {
       var inline = new JX.DiffInline()
         .setChangeset(this)
         .bindToReply(original);
 
       this._inlines.push(inline);
 
       inline.create(text);
 
       return inline;
     },
 
     getInlineByID: function(id) {
       return this._queryInline('id', id);
     },
 
     getInlineByPHID: function(phid) {
       return this._queryInline('phid', phid);
     },
 
     _queryInline: function(field, value) {
       // First, look for the inline in the objects we've already built.
       var inline = this._findInline(field, value);
       if (inline) {
         return inline;
       }
 
       // If we haven't found a matching inline yet, rebuild all the inlines
       // present in the document, then look again.
       this._rebuildAllInlines();
       return this._findInline(field, value);
     },
 
     _findInline: function(field, value) {
       for (var ii = 0; ii < this._inlines.length; ii++) {
         var inline = this._inlines[ii];
 
         var target;
         switch (field) {
           case 'id':
             target = inline.getID();
             break;
           case 'phid':
             target = inline.getPHID();
             break;
         }
 
         if (target == value) {
           return inline;
         }
       }
 
       return null;
     },
 
     getInlines: function() {
       this._rebuildAllInlines();
       return this._inlines;
     },
 
     _rebuildAllInlines: function() {
       var rows = JX.DOM.scry(this._node, 'tr');
       var ii;
       for (ii = 0; ii < rows.length; ii++) {
         var row = rows[ii];
         if (this._getRowType(row) != 'comment') {
           continue;
         }
 
         // As a side effect, this builds any missing inline objects and adds
         // them to this Changeset's list of inlines.
         this.getInlineForRow(row);
       }
     },
 
     redrawFileTree: function() {
       var inlines = this._inlines;
       var done = [];
       var undone = [];
       var inline;
 
       for (var ii = 0; ii < inlines.length; ii++) {
         inline = inlines[ii];
 
         if (inline.isDeleted()) {
           continue;
         }
 
         if (inline.isUndo()) {
           continue;
         }
 
         if (inline.isSynthetic()) {
           continue;
         }
 
         if (inline.isEditing()) {
           continue;
         }
 
         if (!inline.getID()) {
           // These are new comments which have been cancelled, and do not
           // count as anything.
           continue;
         }
 
         if (inline.isDraft()) {
           continue;
         }
 
         if (!inline.isDone()) {
           undone.push(inline);
         } else {
           done.push(inline);
         }
       }
 
       var total = done.length + undone.length;
 
       var hint;
       var is_visible;
       var is_completed;
       if (total) {
         if (done.length) {
           hint = [done.length, '/', total];
         } else  {
           hint = total;
         }
         is_visible = true;
         is_completed = (done.length == total);
       } else {
         hint = '-';
         is_visible = false;
         is_completed = false;
       }
 
       var node = this.getPathView().getInlineNode();
 
       JX.DOM.setContent(node, hint);
 
       JX.DOM.alterClass(node, 'diff-tree-path-inlines-visible', is_visible);
       JX.DOM.alterClass(node, 'diff-tree-path-inlines-completed', is_completed);
     },
 
     _onClickHeader: function(e) {
       // If the user clicks the actual path name text, don't count this as
       // a selection action: we want to let them select the path.
       var path_name = e.getNode('changeset-header-path-name');
       if (path_name) {
         return;
       }
 
       e.prevent();
 
       if (this._isSelected) {
         this.getChangesetList().selectChangeset(null);
       } else {
         this.select(false);
       }
     },
 
     toggleVisibility: function() {
       this.setVisible(!this._visible);
 
       var attrs = {
         hidden: this.isVisible() ? 0 : 1,
         discard: 1
       };
 
       var workflow = this._newReloadWorkflow(attrs)
         .setHandler(JX.bag);
 
       this._startContentWorkflow(workflow);
     },
 
     setVisible: function(visible) {
       this._visible = visible;
 
       var diff = this._getDiffNode();
       var options = this._getViewButtonNode();
       var show = this._getShowButtonNode();
 
       if (this._visible) {
         JX.DOM.show(diff);
         JX.DOM.show(options);
         JX.DOM.hide(show);
       } else {
         JX.DOM.hide(diff);
         JX.DOM.hide(options);
         JX.DOM.show(show);
 
         if (this._viewMenu) {
           this._viewMenu.close();
         }
       }
 
       JX.Stratcom.invoke('resize');
 
       var node = this._node;
       JX.DOM.alterClass(node, 'changeset-content-hidden', !this._visible);
 
       this.getPathView().setIsHidden(!this._visible);
     },
 
     setIsSelected: function(is_selected) {
       this._isSelected = !!is_selected;
 
       var node = this._node;
       JX.DOM.alterClass(node, 'changeset-selected', this._isSelected);
 
       return this;
     },
 
     _getDiffNode: function() {
       if (!this._diffNode) {
         this._diffNode = JX.DOM.find(this._node, 'table', 'differential-diff');
       }
       return this._diffNode;
     },
 
     _getViewButtonNode: function() {
       if (!this._viewButtonNode) {
         this._viewButtonNode = JX.DOM.find(
           this._node,
           'a',
           'differential-view-options');
       }
       return this._viewButtonNode;
     },
 
     _getShowButtonNode: function() {
       if (!this._showButtonNode) {
         var pht = this.getChangesetList().getTranslations();
 
         var show_button = new JX.PHUIXButtonView()
           .setIcon('fa-angle-double-down')
           .setText(pht('Show Changeset'))
           .setColor('grey');
 
         var button_node = show_button.getNode();
         this._getViewButtonNode().parentNode.appendChild(button_node);
 
         var onshow = JX.bind(this, this._onClickShowButton);
         JX.DOM.listen(button_node, 'click', null, onshow);
 
         this._showButtonNode = button_node;
       }
       return this._showButtonNode;
     },
 
     _onClickShowButton: function(e) {
       e.prevent();
 
       // We're always showing the changeset, but want to make sure the state
       // change is persisted on the server.
       this.toggleVisibility();
     },
 
     isVisible: function() {
       return this._visible;
     },
 
     getPathView: function() {
       if (!this._pathView) {
         var view = new JX.DiffPathView()
           .setChangeset(this)
           .setPath(this._pathParts)
           .setIsLowImportance(this._isLowImportance)
           .setIsOwned(this._isOwned)
           .setIsLoading(this._isLoading);
 
         view.getIcon()
           .setIcon(this._pathIconIcon)
           .setColor(this._pathIconColor);
 
         this._pathView = view;
       }
 
       return this._pathView;
     },
 
     select: function(scroll) {
       this.getChangesetList().selectChangeset(this, scroll);
       return this;
     }
   },
 
   statics: {
     getForNode: function(node) {
       var data = JX.Stratcom.getData(node);
       if (!data.changesetViewManager) {
         data.changesetViewManager = new JX.DiffChangeset(node);
       }
       return data.changesetViewManager;
     }
   }
 });
diff --git a/webroot/rsrc/js/application/diff/DiffChangesetList.js b/webroot/rsrc/js/application/diff/DiffChangesetList.js
index f7ebb1bf85..c794ffe1bc 100644
--- a/webroot/rsrc/js/application/diff/DiffChangesetList.js
+++ b/webroot/rsrc/js/application/diff/DiffChangesetList.js
@@ -1,2220 +1,2220 @@
 /**
  * @provides phabricator-diff-changeset-list
  * @requires javelin-install
  *           phuix-button-view
  *           phabricator-diff-tree-view
  * @javelin
  */
 
 JX.install('DiffChangesetList', {
 
   construct: function() {
     this._changesets = [];
 
     var onload = JX.bind(this, this._ifawake, this._onload);
     JX.Stratcom.listen('click', 'differential-load', onload);
 
     var onmore = JX.bind(this, this._ifawake, this._onmore);
     JX.Stratcom.listen('click', 'show-more', onmore);
 
     var onmenu = JX.bind(this, this._ifawake, this._onmenu);
     JX.Stratcom.listen('click', 'differential-view-options', onmenu);
 
     var oncollapse = JX.bind(this, this._ifawake, this._oncollapse, true);
     JX.Stratcom.listen('click', 'hide-inline', oncollapse);
 
     var onexpand = JX.bind(this, this._ifawake, this._oncollapse, false);
     JX.Stratcom.listen('click', 'reveal-inline', onexpand);
 
     var onresize = JX.bind(this, this._ifawake, this._onresize);
     JX.Stratcom.listen('resize', null, onresize);
 
     var onscroll = JX.bind(this, this._ifawake, this._onscroll);
     JX.Stratcom.listen('scroll', null, onscroll);
 
     var onselect = JX.bind(this, this._ifawake, this._onselect);
     JX.Stratcom.listen(
       'mousedown',
       ['differential-inline-comment', 'differential-inline-header'],
       onselect);
 
     var onhover = JX.bind(this, this._ifawake, this._onhover);
     JX.Stratcom.listen(
       ['mouseover', 'mouseout'],
       'differential-inline-comment',
       onhover);
 
     var onrangedown = JX.bind(this, this._ifawake, this._onrangedown);
     JX.Stratcom.listen(
       'mousedown',
       ['differential-changeset', 'tag:td'],
       onrangedown);
 
     var onrangemove = JX.bind(this, this._ifawake, this._onrangemove);
     JX.Stratcom.listen(
       ['mouseover', 'mouseout'],
       ['differential-changeset', 'tag:td'],
       onrangemove);
 
     var onrangeup = JX.bind(this, this._ifawake, this._onrangeup);
     JX.Stratcom.listen(
       'mouseup',
       null,
       onrangeup);
 
     this._setupInlineCommentListeners();
   },
 
   properties: {
     translations: null,
     inlineURI: null,
     inlineListURI: null,
     isStandalone: false,
     formationView: null
   },
 
   members: {
     _initialized: false,
     _asleep: true,
     _changesets: null,
 
     _cursorItem: null,
 
     _focusNode: null,
     _focusStart: null,
     _focusEnd: null,
 
     _hoverNode: null,
     _hoverInline: null,
     _hoverOrigin: null,
     _hoverTarget: null,
 
     _rangeActive: false,
     _rangeOrigin: null,
     _rangeTarget: null,
 
     _bannerNode: null,
     _unsavedButton: null,
     _unsubmittedButton: null,
     _doneButton: null,
     _doneMode: null,
 
     _dropdownMenu: null,
     _menuButton: null,
     _menuItems: null,
     _selectedChangeset: null,
 
     sleep: function() {
       this._asleep = true;
 
       this._redrawFocus();
       this._redrawSelection();
       this.resetHover();
 
       this._bannerChangeset = null;
       this._redrawBanner();
     },
 
     wake: function() {
       this._asleep = false;
 
       this._redrawFocus();
       this._redrawSelection();
 
       this._bannerChangeset = null;
       this._redrawBanner();
 
       this._redrawFiletree();
 
       if (this._initialized) {
         return;
       }
 
       this._initialized = true;
       var pht = this.getTranslations();
 
       // We may be viewing the normal "/D123" view (with all the changesets)
       // or the standalone view (with just one changeset). In the standalone
       // view, some options (like jumping to next or previous file) do not
       // make sense and do not function.
       var standalone = this.getIsStandalone();
 
       var label;
 
       if (!standalone) {
         label = pht('Jump to the table of contents.');
         this._installKey('t', 'diff-nav', label, this._ontoc);
 
         label = pht('Jump to the comment area.');
         this._installKey('x', 'diff-nav', label, this._oncomments);
       }
 
       label = pht('Jump to next change.');
       this._installJumpKey('j', label, 1);
 
       label = pht('Jump to previous change.');
       this._installJumpKey('k', label, -1);
 
       if (!standalone) {
         label = pht('Jump to next file.');
         this._installJumpKey('J', label, 1, 'file');
 
         label = pht('Jump to previous file.');
         this._installJumpKey('K', label, -1, 'file');
       }
 
       label = pht('Jump to next inline comment.');
       this._installJumpKey('n', label, 1, 'comment');
 
       label = pht('Jump to previous inline comment.');
       this._installJumpKey('p', label, -1, 'comment');
 
       label = pht('Jump to next inline comment, including collapsed comments.');
       this._installJumpKey('N', label, 1, 'comment', true);
 
       label = pht(
         'Jump to previous inline comment, including collapsed comments.');
       this._installJumpKey('P', label, -1, 'comment', true);
 
       var formation = this.getFormationView();
       if (formation) {
         var filetree = formation.getColumn(0);
         var toggletree = JX.bind(filetree, filetree.toggleVisibility);
         label = pht('Hide or show the paths panel.');
         this._installKey('f', 'diff-vis', label, toggletree);
       }
 
       if (!standalone) {
         label = pht('Hide or show the current changeset.');
         this._installKey('h', 'diff-vis', label, this._onkeytogglefile);
       }
 
       label = pht('Reply to selected inline comment or change.');
       this._installKey('r', 'inline', label,
         JX.bind(this, this._onkeyreply, false));
 
       label = pht('Reply and quote selected inline comment.');
       this._installKey('R', 'inline', label,
         JX.bind(this, this._onkeyreply, true));
 
       label = pht('Edit selected inline comment.');
       this._installKey('e', 'inline', label, this._onkeyedit);
 
       label = pht('Mark or unmark selected inline comment as done.');
       this._installKey('w', 'inline', label, this._onkeydone);
 
       label = pht('Collapse or expand inline comment.');
       this._installKey('q', 'diff-vis', label, this._onkeycollapse);
 
       label = pht('Hide or show all inline comments.');
       this._installKey('A', 'diff-vis', label, this._onkeyhideall);
 
       label = pht('Show path in repository.');
       this._installKey('d', 'diff-nav', label, this._onkeyshowpath);
 
       label = pht('Show directory in repository.');
       this._installKey('D', 'diff-nav', label, this._onkeyshowdirectory);
 
       label = pht('Open file in external editor.');
       this._installKey('\\', 'diff-nav', label, this._onkeyopeneditor);
     },
 
     isAsleep: function() {
       return this._asleep;
     },
 
     newChangesetForNode: function(node) {
       var changeset = JX.DiffChangeset.getForNode(node);
 
       this._changesets.push(changeset);
       changeset.setChangesetList(this);
 
       return changeset;
     },
 
     getChangesetForNode: function(node) {
       return JX.DiffChangeset.getForNode(node);
     },
 
     getInlineByID: function(id) {
       var inline = null;
 
       for (var ii = 0; ii < this._changesets.length; ii++) {
         inline = this._changesets[ii].getInlineByID(id);
         if (inline) {
           break;
         }
       }
 
       return inline;
     },
 
     _ifawake: function(f) {
       // This function takes another function and only calls it if the
       // changeset list is awake, so we basically just ignore events when we
       // are asleep. This may move up the stack at some point as we do more
       // with Quicksand/Sheets.
 
       if (this.isAsleep()) {
         return;
       }
 
       return f.apply(this, [].slice.call(arguments, 1));
     },
 
     _onload: function(e) {
       var data = e.getNodeData('differential-load');
 
       // NOTE: We can trigger a load from either an explicit "Load" link on
       // the changeset, or by clicking a link in the table of contents. If
       // the event was a table of contents link, we let the anchor behavior
       // run normally.
       if (data.kill) {
         e.kill();
       }
 
       var node = JX.$(data.id);
       var changeset = this.getChangesetForNode(node);
 
       changeset.load();
 
       // TODO: Move this into Changeset.
       var routable = changeset.getRoutable();
       if (routable) {
         routable.setPriority(2000);
       }
     },
 
     _installKey: function(key, group, label, handler) {
       handler = JX.bind(this, this._ifawake, handler);
 
       return new JX.KeyboardShortcut(key, label)
         .setHandler(handler)
         .setGroup(group)
         .register();
     },
 
     _installJumpKey: function(key, label, delta, filter, show_collapsed) {
       filter = filter || null;
 
       var options = {
         filter: filter,
         collapsed: show_collapsed
       };
 
       var handler = JX.bind(this, this._onjumpkey, delta, options);
       return this._installKey(key, 'diff-nav', label, handler);
     },
 
     _ontoc: function(manager) {
       var toc = JX.$('toc');
       manager.scrollTo(toc);
     },
 
     _oncomments: function(manager) {
       var reply = JX.$('reply');
       manager.scrollTo(reply);
     },
 
     getSelectedInline: function() {
       var cursor = this._cursorItem;
 
       if (cursor) {
         if (cursor.type == 'comment') {
           return cursor.target;
         }
       }
 
       return null;
     },
 
     _onkeyreply: function(is_quote) {
       var cursor = this._cursorItem;
 
       if (cursor) {
         if (cursor.type == 'comment') {
           var inline = cursor.target;
           if (inline.canReply()) {
             this.setFocus(null);
 
             var text;
             if (is_quote) {
               text = inline.getRawText();
               text = '> ' + text.replace(/\n/g, '\n> ') + '\n\n';
             } else {
               text = '';
             }
 
             inline.reply(text);
             return;
           }
         }
 
         // If the keyboard cursor is selecting a range of lines, we may have
         // a mixture of old and new changes on the selected rows. It is not
         // entirely unambiguous what the user means when they say they want
         // to reply to this, but we use this logic: reply on the new file if
         // there are any new lines. Otherwise (if there are only removed
         // lines) reply on the old file.
 
         if (cursor.type == 'change') {
           var origin = cursor.nodes.begin;
           var target = cursor.nodes.end;
 
           // The "origin" and "target" are entire rows, but we need to find
           // a range of "<th />" nodes to actually create an inline, so go
           // fishing.
 
           var old_list = [];
           var new_list = [];
 
           var row = origin;
           while (row) {
             var header = row.firstChild;
             while (header) {
               if (this.getLineNumberFromHeader(header)) {
                 if (header.className.indexOf('old') !== -1) {
                   old_list.push(header);
                 } else if (header.className.indexOf('new') !== -1) {
                   new_list.push(header);
                 }
               }
               header = header.nextSibling;
             }
 
             if (row == target) {
               break;
             }
 
             row = row.nextSibling;
           }
 
           var use_list;
           if (new_list.length) {
             use_list = new_list;
           } else {
             use_list = old_list;
           }
 
           var src = use_list[0];
           var dst = use_list[use_list.length - 1];
 
           cursor.changeset.newInlineForRange(src, dst);
 
           this.setFocus(null);
           return;
         }
       }
 
       var pht = this.getTranslations();
       this._warnUser(pht('You must select a comment or change to reply to.'));
     },
 
     _onkeyedit: function() {
       var cursor = this._cursorItem;
 
       if (cursor) {
         if (cursor.type == 'comment') {
           var inline = cursor.target;
           if (inline.canEdit()) {
             this.setFocus(null);
 
             inline.edit();
             return;
           }
         }
       }
 
       var pht = this.getTranslations();
       this._warnUser(pht('You must select a comment to edit.'));
     },
 
     _onkeydone: function() {
       var cursor = this._cursorItem;
 
       if (cursor) {
         if (cursor.type == 'comment') {
           var inline = cursor.target;
           if (inline.canDone()) {
             this.setFocus(null);
 
             inline.toggleDone();
             return;
           }
         }
       }
 
       var pht = this.getTranslations();
       this._warnUser(pht('You must select a comment to mark done.'));
     },
 
     _onkeytogglefile: function() {
       var pht = this.getTranslations();
       var changeset = this._getChangesetForKeyCommand();
 
       if (!changeset) {
         this._warnUser(pht('You must select a file to hide or show.'));
         return;
       }
 
       changeset.toggleVisibility();
     },
 
     _getChangesetForKeyCommand: function() {
       var cursor = this._cursorItem;
 
       var changeset;
       if (cursor) {
         changeset = cursor.changeset;
       }
 
       if (!changeset) {
         changeset = this._getVisibleChangeset();
       }
 
       return changeset;
     },
 
     _onkeyopeneditor: function() {
       var pht = this.getTranslations();
       var changeset = this._getChangesetForKeyCommand();
 
       if (!changeset) {
         this._warnUser(pht('You must select a file to edit.'));
         return;
       }
 
       var editor_uri = changeset.getEditorURI();
 
       if (editor_uri === null) {
         this._warnUser(pht('No external editor is configured.'));
         return;
       }
 
       JX.$U(editor_uri).go();
     },
 
     _onkeyshowpath: function() {
       this._onrepositorykey(false);
     },
 
     _onkeyshowdirectory: function() {
       this._onrepositorykey(true);
     },
 
     _onrepositorykey: function(is_directory) {
       var pht = this.getTranslations();
       var changeset = this._getChangesetForKeyCommand();
 
       if (!changeset) {
         this._warnUser(pht('You must select a file to open.'));
         return;
       }
 
       var show_uri;
       if (is_directory) {
         show_uri = changeset.getShowDirectoryURI();
       } else {
         show_uri = changeset.getShowPathURI();
       }
 
       if (show_uri === null) {
         return;
       }
 
       window.open(show_uri);
     },
 
     _onkeycollapse: function() {
       var cursor = this._cursorItem;
 
       if (cursor) {
         if (cursor.type == 'comment') {
           var inline = cursor.target;
           if (inline.canCollapse()) {
             this.setFocus(null);
 
             inline.setCollapsed(!inline.isCollapsed());
             return;
           }
         }
       }
 
       var pht = this.getTranslations();
       this._warnUser(pht('You must select a comment to hide.'));
     },
 
     _onkeyhideall: function() {
       var inlines = this._getInlinesByType();
       if (inlines.visible.length) {
         this._toggleInlines('all');
       } else {
         this._toggleInlines('show');
       }
     },
 
     _warnUser: function(message) {
       new JX.Notification()
         .setContent(message)
         .alterClassName('jx-notification-alert', true)
         .setDuration(3000)
         .show();
     },
 
     _onjumpkey: function(delta, options) {
       var state = this._getSelectionState();
 
       var filter = options.filter || null;
       var collapsed = options.collapsed || false;
       var wrap = options.wrap || false;
       var attribute = options.attribute || null;
       var show = options.show || false;
 
       var cursor = state.cursor;
       var items = state.items;
 
       // If there's currently no selection and the user tries to go back,
       // don't do anything.
       if ((cursor === null) && (delta < 0)) {
         return;
       }
 
       var did_wrap = false;
       while (true) {
         if (cursor === null) {
           cursor = 0;
         } else {
           cursor = cursor + delta;
         }
 
         // If we've gone backward past the first change, bail out.
         if (cursor < 0) {
           return;
         }
 
         // If we've gone forward off the end of the list, figure out where we
         // should end up.
         if (cursor >= items.length) {
           if (!wrap) {
             // If we aren't wrapping around, we're done.
             return;
           }
 
           if (did_wrap) {
             // If we're already wrapped around, we're done.
             return;
           }
 
           // Otherwise, wrap the cursor back to the top.
           cursor = 0;
           did_wrap = true;
         }
 
         // If we're selecting things of a particular type (like only files)
         // and the next item isn't of that type, move past it.
         if (filter !== null) {
           if (items[cursor].type !== filter) {
             continue;
           }
         }
 
         // If the item is collapsed, don't select it when iterating with jump
         // keys. It can still potentially be selected in other ways.
         if (!collapsed) {
           if (items[cursor].collapsed) {
             continue;
           }
         }
 
         // If the item has been deleted, don't select it when iterating. The
         // cursor may remain on it until it is removed.
         if (items[cursor].deleted) {
           continue;
         }
 
         // If we're selecting things with a particular attribute, like
         // "unsaved", skip items without the attribute.
         if (attribute !== null) {
           if (!(items[cursor].attributes || {})[attribute]) {
             continue;
           }
         }
 
         // If this item is a hidden inline but we're clicking a button which
         // selects inlines of a particular type, make it visible again.
         if (items[cursor].hidden) {
           if (!show) {
             continue;
           }
           items[cursor].target.setHidden(false);
         }
 
         // Otherwise, we've found a valid item to select.
         break;
       }
 
       this._setSelectionState(items[cursor], true);
     },
 
     _getSelectionState: function() {
       var items = this._getSelectableItems();
 
       var cursor = null;
       if (this._cursorItem !== null) {
         for (var ii = 0; ii < items.length; ii++) {
           var item = items[ii];
           if (this._cursorItem.target === item.target) {
             cursor = ii;
             break;
           }
         }
       }
 
       return {
         cursor: cursor,
         items: items
       };
     },
 
     selectChangeset: function(changeset, scroll) {
       var items = this._getSelectableItems();
 
       var cursor = null;
       for (var ii = 0; ii < items.length; ii++) {
         var item = items[ii];
         if (changeset === item.target) {
           cursor = ii;
           break;
         }
       }
 
       if (cursor !== null) {
         this._setSelectionState(items[cursor], scroll);
       } else {
         this._setSelectionState(null, false);
       }
 
       return this;
     },
 
     _setSelectionState: function(item, scroll) {
       this._cursorItem = item;
       this._redrawSelection(scroll);
 
       return this;
     },
 
     _redrawSelection: function(scroll) {
       var cursor = this._cursorItem;
       if (!cursor) {
         this.setFocus(null);
         return;
       }
 
       // If this item has been removed from the document (for example: create
       // a new empty comment, then use the "Unsaved" button to select it, then
       // cancel it), we can still keep the cursor here but do not want to show
       // a selection reticle over an invisible node.
       if (cursor.deleted) {
         this.setFocus(null);
         return;
       }
 
       var changeset = cursor.changeset;
 
       var tree = this._getTreeView();
       if (changeset) {
         tree.setSelectedPath(cursor.changeset.getPathView());
       } else {
         tree.setSelectedPath(null);
       }
 
       this._selectChangeset(changeset);
 
       this.setFocus(cursor.nodes.begin, cursor.nodes.end);
 
       if (scroll) {
         var pos = JX.$V(cursor.nodes.begin);
         JX.DOM.scrollToPosition(0, pos.y - 60);
       }
 
       return this;
     },
 
     redrawCursor: function() {
       // NOTE: This is setting the cursor to the current cursor. Usually, this
       // would have no effect.
 
       // However, if the old cursor pointed at an inline and the inline has
       // been edited so the rows have changed, this updates the cursor to point
       // at the new inline with the proper rows for the current state, and
       // redraws the reticle correctly.
 
       var state = this._getSelectionState();
       if (state.cursor !== null) {
         this._setSelectionState(state.items[state.cursor], false);
       }
     },
 
     _getSelectableItems: function() {
       var result = [];
 
       for (var ii = 0; ii < this._changesets.length; ii++) {
         var items = this._changesets[ii].getSelectableItems();
         for (var jj = 0; jj < items.length; jj++) {
           result.push(items[jj]);
         }
       }
 
       return result;
     },
 
     _onhover: function(e) {
       if (e.getIsTouchEvent()) {
         return;
       }
 
       var inline;
       if (e.getType() == 'mouseout') {
         inline = null;
       } else {
         inline = this._getInlineForEvent(e);
       }
 
       this._setHoverInline(inline);
     },
 
     _onmore: function(e) {
       e.kill();
 
       var node = e.getNode('differential-changeset');
       var changeset = this.getChangesetForNode(node);
 
       var data = e.getNodeData('show-more');
       var target = e.getNode('context-target');
 
       changeset.loadContext(data.range, target);
     },
 
     _onmenu: function(e) {
       var button = e.getNode('differential-view-options');
 
       var data = JX.Stratcom.getData(button);
       if (data.menu) {
         // We've already built this menu, so we can let the menu itself handle
         // the event.
         return;
       }
 
       e.prevent();
 
       var pht = this.getTranslations();
 
       var node = JX.DOM.findAbove(
         button,
         'div',
         'differential-changeset');
 
       var changeset_list = this;
       var changeset = this.getChangesetForNode(node);
 
       var menu = new JX.PHUIXDropdownMenu(button)
         .setWidth(240);
       var list = new JX.PHUIXActionListView();
 
       var add_link = function(icon, name, href, local) {
         var link = new JX.PHUIXActionView()
           .setIcon(icon)
           .setName(name)
           .setHandler(function(e) {
             if (local) {
               window.location.assign(href);
             } else {
               window.open(href);
             }
             menu.close();
             e.prevent();
           });
 
         if (href) {
           link.setHref(href);
         } else {
           link
             .setDisabled(true)
             .setUnresponsive(true);
         }
 
         list.addItem(link);
         return link;
       };
 
       var visible_item = new JX.PHUIXActionView()
         .setKeyCommand('h')
         .setHandler(function(e) {
           e.prevent();
           menu.close();
 
           changeset.select(false);
           changeset.toggleVisibility();
         });
       list.addItem(visible_item);
 
       var reveal_item = new JX.PHUIXActionView()
         .setIcon('fa-eye');
       list.addItem(reveal_item);
 
       list.addItem(
         new JX.PHUIXActionView()
           .setDivider(true));
 
       var up_item = new JX.PHUIXActionView()
         .setHandler(function(e) {
           if (changeset.isLoaded()) {
 
             // Don't let the user swap display modes if a comment is being
             // edited, since they might lose their work. See PHI180.
             var inlines = changeset.getInlines();
             for (var ii = 0; ii < inlines.length; ii++) {
               if (inlines[ii].isEditing()) {
                 changeset_list._warnUser(
                   pht(
                     'Finish editing inline comments before changing display ' +
                     'modes.'));
                 e.prevent();
                 menu.close();
                 return;
               }
             }
 
             var renderer = changeset.getRendererKey();
             if (renderer == '1up') {
               renderer = '2up';
             } else {
               renderer = '1up';
             }
             changeset.reload({renderer: renderer});
           } else {
             changeset.reload();
           }
 
           e.prevent();
           menu.close();
         });
       list.addItem(up_item);
 
       var encoding_item = new JX.PHUIXActionView()
         .setIcon('fa-font')
         .setName(pht('Change Text Encoding...'))
         .setHandler(function(e) {
           var params = {
             encoding: changeset.getCharacterEncoding()
           };
 
           new JX.Workflow('/services/encoding/', params)
             .setHandler(function(r) {
               changeset.reload({encoding: r.encoding});
             })
             .start();
 
           e.prevent();
           menu.close();
         });
       list.addItem(encoding_item);
 
       var highlight_item = new JX.PHUIXActionView()
         .setIcon('fa-sun-o')
         .setName(pht('Highlight As...'))
         .setHandler(function(e) {
           var params = {
             highlight: changeset.getHighlight()
           };
 
           new JX.Workflow('/services/highlight/', params)
             .setHandler(function(r) {
               changeset.reload({highlight: r.highlight});
             })
             .start();
 
           e.prevent();
           menu.close();
         });
       list.addItem(highlight_item);
 
       var engine_item = new JX.PHUIXActionView()
         .setIcon('fa-file-image-o')
         .setName(pht('View As Document Type...'))
         .setHandler(function(e) {
           var params = {
-            engine: changeset.getDocumentEngine(),
+            engine: changeset.getResponseDocumentEngineKey(),
           };
 
           new JX.Workflow('/services/viewas/', params)
             .setHandler(function(r) {
               changeset.reload({engine: r.engine});
             })
             .start();
 
           e.prevent();
           menu.close();
         });
       list.addItem(engine_item);
 
       list.addItem(
         new JX.PHUIXActionView()
           .setDivider(true));
 
       add_link('fa-external-link', pht('View Standalone'), data.standaloneURI);
 
       add_link('fa-arrow-left', pht('Show Raw File (Left)'), data.leftURI);
       add_link('fa-arrow-right', pht('Show Raw File (Right)'), data.rightURI);
 
       add_link(
         'fa-folder-open-o',
         pht('Show Directory in Repository'),
         changeset.getShowDirectoryURI())
         .setKeyCommand('D');
 
       add_link(
         'fa-file-text-o',
         pht('Show Path in Repository'),
         changeset.getShowPathURI())
         .setKeyCommand('d');
 
       var editor_uri = changeset.getEditorURI();
       if (editor_uri !== null) {
         add_link('fa-i-cursor', pht('Open in Editor'), editor_uri, true)
           .setKeyCommand('\\');
       } else {
         var configure_uri = changeset.getEditorConfigureURI();
         if (configure_uri !== null) {
           add_link('fa-wrench', pht('Configure Editor'), configure_uri);
         }
       }
 
       menu.setContent(list.getNode());
 
       menu.listen('open', function() {
         // When the user opens the menu, check if there are any "Show More"
         // links in the changeset body. If there aren't, disable the "Show
         // Entire File" menu item since it won't change anything.
 
         var nodes = JX.DOM.scry(JX.$(data.containerID), 'a', 'show-more');
         if (nodes.length) {
           reveal_item
             .setDisabled(false)
             .setName(pht('Show All Context'))
             .setIcon('fa-arrows-v')
             .setHandler(function(e) {
               changeset.loadAllContext();
               e.prevent();
               menu.close();
             });
         } else {
           reveal_item
             .setDisabled(true)
             .setUnresponsive(true)
             .setIcon('fa-file')
             .setName(pht('All Context Shown'))
             .setHref(null);
         }
 
         encoding_item.setDisabled(!changeset.isLoaded());
         highlight_item.setDisabled(!changeset.isLoaded());
         engine_item.setDisabled(!changeset.isLoaded());
 
         if (changeset.isLoaded()) {
           if (changeset.getRendererKey() == '2up') {
             up_item
               .setIcon('fa-list-alt')
               .setName(pht('View Unified Diff'));
           } else {
             up_item
               .setIcon('fa-columns')
               .setName(pht('View Side-by-Side Diff'));
           }
         } else {
           up_item
             .setIcon('fa-refresh')
             .setName(pht('Load Changes'));
         }
 
         visible_item
           .setDisabled(true)
           .setIcon('fa-eye-slash')
           .setName(pht('Hide Changeset'));
 
         var diffs = JX.DOM.scry(
           JX.$(data.containerID),
           'table',
           'differential-diff');
 
         if (diffs.length > 1) {
           JX.$E(
             'More than one node with sigil "differential-diff" was found in "'+
             data.containerID+'."');
         } else if (diffs.length == 1) {
           visible_item.setDisabled(false);
         } else {
           // Do nothing when there is no diff shown in the table. For example,
           // the file is binary.
         }
 
       });
 
       data.menu = menu;
       changeset.setViewMenu(menu);
       menu.open();
     },
 
     _oncollapse: function(is_collapse, e) {
       e.kill();
 
       var inline = this._getInlineForEvent(e);
 
       inline.setCollapsed(is_collapse);
     },
 
     _onresize: function() {
       this._redrawFocus();
       this._redrawSelection();
       this._redrawHover();
 
       // Force a banner redraw after a resize event. Particularly, this makes
       // sure the inline state updates immediately after an inline edit
       // operation, even if the changeset itself has not changed.
       this._bannerChangeset = null;
 
       this._redrawBanner();
 
       var changesets = this._changesets;
       for (var ii = 0; ii < changesets.length; ii++) {
         changesets[ii].redrawFileTree();
       }
     },
 
     _onscroll: function() {
       this._redrawBanner();
     },
 
     _onselect: function(e) {
       // If the user clicked some element inside the header, like an action
       // icon, ignore the event. They have to click the header element itself.
       if (e.getTarget() !== e.getNode('differential-inline-header')) {
         return;
       }
 
       var inline = this._getInlineForEvent(e);
       if (!inline) {
         return;
       }
 
       // The user definitely clicked an inline, so we're going to handle the
       // event.
       e.kill();
 
       this.selectInline(inline);
     },
 
     selectInline: function(inline, force, scroll) {
       var selection = this._getSelectionState();
       var item;
 
       if (!force) {
         // If the comment the user clicked is currently selected, deselect it.
         // This makes it easy to undo things if you clicked by mistake.
         if (selection.cursor !== null) {
           item = selection.items[selection.cursor];
           if (item.target === inline) {
             this._setSelectionState(null, false);
             return;
           }
         }
       }
 
       // Otherwise, select the item that the user clicked. This makes it
       // easier to resume keyboard operations after using the mouse to do
       // something else.
       var items = selection.items;
       for (var ii = 0; ii < items.length; ii++) {
         item = items[ii];
         if (item.target === inline) {
           this._setSelectionState(item, scroll);
         }
       }
 
     },
 
     redrawPreview: function() {
       // TODO: This isn't the cleanest way to find the preview form, but
       // rendering no longer has direct access to it.
       var forms = JX.DOM.scry(document.body, 'form', 'transaction-append');
       if (forms.length) {
         JX.DOM.invoke(forms[0], 'shouldRefresh');
       }
 
       // Clear the mouse hover reticle after a substantive edit: we don't get
       // a "mouseout" event if the row vanished because of row being removed
       // after an edit.
       this.resetHover();
     },
 
     setFocus: function(node, extended_node) {
       if (!node) {
         var tree = this._getTreeView();
         tree.setSelectedPath(null);
         this._selectChangeset(null);
       }
 
       this._focusStart = node;
       this._focusEnd = extended_node;
       this._redrawFocus();
     },
 
     _selectChangeset: function(changeset) {
       if (this._selectedChangeset === changeset) {
         return;
       }
 
       if (this._selectedChangeset !== null) {
         this._selectedChangeset.setIsSelected(false);
         this._selectedChangeset = null;
       }
 
       this._selectedChangeset = changeset;
       if (this._selectedChangeset !== null) {
         this._selectedChangeset.setIsSelected(true);
       }
     },
 
     _redrawFocus: function() {
       var node = this._focusStart;
       var extended_node = this._focusEnd || node;
 
       var reticle = this._getFocusNode();
       if (!node || this.isAsleep()) {
         JX.DOM.remove(reticle);
         return;
       }
 
       // Outset the reticle some pixels away from the element, so there's some
       // space between the focused element and the outline.
       var p = JX.Vector.getPos(node);
       var s = JX.Vector.getAggregateScrollForNode(node);
       var d = JX.Vector.getDim(node);
 
       p.add(s).add(d.x + 1, 4).setPos(reticle);
       // Compute the size we need to extend to the full extent of the focused
       // nodes.
       JX.Vector.getPos(extended_node)
         .add(-p.x, -p.y)
         .add(0, JX.Vector.getDim(extended_node).y)
         .add(10, -4)
         .setDim(reticle);
 
       JX.DOM.getContentFrame().appendChild(reticle);
     },
 
     _getFocusNode: function() {
       if (!this._focusNode) {
         var node = JX.$N('div', {className : 'keyboard-focus-focus-reticle'});
         this._focusNode = node;
       }
       return this._focusNode;
     },
 
     _setHoverInline: function(inline) {
       this._hoverInline = inline;
 
       if (inline) {
         var changeset = inline.getChangeset();
 
         var changeset_id;
         var side = inline.getDisplaySide();
         if (side == 'right') {
           changeset_id = changeset.getRightChangesetID();
         } else {
           changeset_id = changeset.getLeftChangesetID();
         }
 
         var new_part;
         if (inline.isNewFile()) {
           new_part = 'N';
         } else {
           new_part = 'O';
         }
 
         var prefix = 'C' + changeset_id + new_part + 'L';
 
         var number = inline.getLineNumber();
         var length = inline.getLineLength();
 
         try {
           var origin = JX.$(prefix + number);
           var target = JX.$(prefix + (number + length));
 
           this._hoverOrigin = origin;
           this._hoverTarget = target;
         } catch (error) {
           // There may not be any nodes present in the document. A case where
           // this occurs is when you reply to a ghost inline which was made
           // on lines near the bottom of "long.txt" in an earlier diff, and
           // the file was later shortened so those lines no longer exist. For
           // more details, see T11662.
 
           this._hoverOrigin = null;
           this._hoverTarget = null;
         }
       } else {
         this._hoverOrigin = null;
         this._hoverTarget = null;
       }
 
       this._redrawHover();
     },
 
     _setHoverRange: function(origin, target) {
       this._hoverOrigin = origin;
       this._hoverTarget = target;
 
       this._redrawHover();
     },
 
     resetHover: function() {
       this._setHoverInline(null);
 
       this._hoverOrigin = null;
       this._hoverTarget = null;
     },
 
     _redrawHover: function() {
       var reticle = this._getHoverNode();
       if (!this._hoverOrigin || this.isAsleep()) {
         JX.DOM.remove(reticle);
         return;
       }
 
       JX.DOM.getContentFrame().appendChild(reticle);
 
       var top = this._hoverOrigin;
       var bot = this._hoverTarget;
       if (JX.$V(top).y > JX.$V(bot).y) {
         var tmp = top;
         top = bot;
         bot = tmp;
       }
 
       // Find the leftmost cell that we're going to highlight. This is the
       // next sibling with a "data-copy-mode" attribute, which is a marker
       // for the cell with actual content in it.
       var content_cell = top;
       while (content_cell && !content_cell.getAttribute('data-copy-mode')) {
         content_cell = content_cell.nextSibling;
       }
 
       // If we didn't find a cell to highlight, don't highlight anything.
       if (!content_cell) {
         return;
       }
 
       var pos = JX.$V(content_cell)
         .add(JX.Vector.getAggregateScrollForNode(content_cell));
 
       var dim = JX.$V(content_cell)
         .add(JX.Vector.getAggregateScrollForNode(content_cell))
         .add(-pos.x, -pos.y)
         .add(JX.Vector.getDim(content_cell));
 
       var bpos = JX.$V(bot)
         .add(JX.Vector.getAggregateScrollForNode(bot));
       dim.y = (bpos.y - pos.y) + JX.Vector.getDim(bot).y;
 
       pos.setPos(reticle);
       dim.setDim(reticle);
 
       JX.DOM.show(reticle);
     },
 
     _getHoverNode: function() {
       if (!this._hoverNode) {
         var attributes = {
           className: 'differential-reticle'
         };
         this._hoverNode = JX.$N('div', attributes);
       }
 
       return this._hoverNode;
     },
 
     _deleteInlineByID: function(id) {
       var uri = this.getInlineURI();
       var data = {
         op: 'refdelete',
         id: id
       };
 
       var handler = JX.bind(this, this.redrawPreview);
 
       new JX.Workflow(uri, data)
         .setHandler(handler)
         .start();
     },
 
     _getInlineForEvent: function(e) {
       var node = e.getNode('differential-changeset');
       if (!node) {
         return null;
       }
 
       var changeset = this.getChangesetForNode(node);
 
       var inline_row = e.getNode('inline-row');
       return changeset.getInlineForRow(inline_row);
     },
 
     getLineNumberFromHeader: function(node) {
       var n = parseInt(node.getAttribute('data-n'));
 
       if (!n) {
         return null;
       }
 
       // If this is a line number that's part of a row showing more context,
       // we don't want to let users leave inlines here.
 
       try {
         JX.DOM.findAbove(node, 'tr', 'context-target');
         return null;
       } catch (ex) {
         // Ignore.
       }
 
       return n;
     },
 
     getDisplaySideFromHeader: function(th) {
       return (th.parentNode.firstChild != th) ? 'right' : 'left';
     },
 
     _onrangedown: function(e) {
       // NOTE: We're allowing "mousedown" from a touch event through so users
       // can leave inlines on a single line.
 
       // See PHI985. We want to exclude both right-mouse and middle-mouse
       // clicks from continuing.
       if (!e.isLeftButton()) {
         return;
       }
 
       if (this._rangeActive) {
         return;
       }
 
       var target = e.getTarget();
       var number = this.getLineNumberFromHeader(target);
       if (!number) {
         return;
       }
 
       e.kill();
       this._rangeActive = true;
 
       this._rangeOrigin = target;
       this._rangeTarget = target;
 
       this._setHoverRange(this._rangeOrigin, this._rangeTarget);
     },
 
     _onrangemove: function(e) {
       if (e.getIsTouchEvent()) {
         return;
       }
 
       var is_out = (e.getType() == 'mouseout');
       var target = e.getTarget();
 
       this._updateRange(target, is_out);
     },
 
     _updateRange: function(target, is_out) {
       // Don't update the range if this target doesn't correspond to a line
       // number. For instance, this may be a dead line number, like the empty
       // line numbers on the left hand side of a newly added file.
       var number = this.getLineNumberFromHeader(target);
       if (!number) {
         return;
       }
 
       if (this._rangeActive) {
         var origin = this._hoverOrigin;
 
         // Don't update the reticle if we're selecting a line range and the
         // "<th />" under the cursor is on the wrong side of the file. You can
         // only leave inline comments on the left or right side of a file, not
         // across lines on both sides.
         var origin_side = this.getDisplaySideFromHeader(origin);
         var target_side = this.getDisplaySideFromHeader(target);
         if (origin_side != target_side) {
           return;
         }
 
         // Don't update the reticle if we're selecting a line range and the
         // "<th />" under the cursor corresponds to a different file. You can
         // only leave inline comments on lines in a single file, not across
         // multiple files.
         var origin_table = JX.DOM.findAbove(origin, 'table');
         var target_table = JX.DOM.findAbove(target, 'table');
         if (origin_table != target_table) {
           return;
         }
       }
 
       if (is_out) {
         if (this._rangeActive) {
           // If we're dragging a range, just leave the state as it is. This
           // allows you to drag over something invalid while selecting a
           // range without the range flickering or getting lost.
         } else {
           // Otherwise, clear the current range.
           this.resetHover();
         }
         return;
       }
 
       if (this._rangeActive) {
         this._rangeTarget = target;
       } else {
         this._rangeOrigin = target;
         this._rangeTarget = target;
       }
 
       this._setHoverRange(this._rangeOrigin, this._rangeTarget);
     },
 
     _onrangeup: function(e) {
       if (!this._rangeActive) {
         return;
       }
 
       e.kill();
 
       var origin = this._rangeOrigin;
       var target = this._rangeTarget;
 
       // If the user dragged a range from the bottom to the top, swap the node
       // order around.
       if (JX.$V(origin).y > JX.$V(target).y) {
         var tmp = target;
         target = origin;
         origin = tmp;
       }
 
       var node = JX.DOM.findAbove(origin, null, 'differential-changeset');
       var changeset = this.getChangesetForNode(node);
 
       changeset.newInlineForRange(origin, target);
 
       this._rangeActive = false;
       this._rangeOrigin = null;
       this._rangeTarget = null;
 
       this.resetHover();
     },
 
     _redrawBanner: function() {
       // If the inline comment menu is open and we've done a redraw, close it.
       // In particular, this makes it close when you scroll the document:
       // otherwise, it stays open but the banner moves underneath it.
       if (this._dropdownMenu) {
         this._dropdownMenu.close();
       }
 
       var node = this._getBannerNode();
       var changeset = this._getVisibleChangeset();
       var tree = this._getTreeView();
       var formation = this.getFormationView();
 
       if (!changeset) {
         this._bannerChangeset = null;
         JX.DOM.remove(node);
         tree.setFocusedPath(null);
 
         if (formation) {
           formation.repaint();
         }
 
         return;
       }
 
       // Don't do anything if nothing has changed. This seems to avoid some
       // flickering issues in Safari, at least.
       if (this._bannerChangeset === changeset) {
         return;
       }
       this._bannerChangeset = changeset;
 
       var paths = tree.getPaths();
       for (var ii = 0; ii < paths.length; ii++) {
         var path = paths[ii];
         if (path.getChangeset() === changeset) {
           tree.setFocusedPath(path);
         }
       }
 
       var inlines = this._getInlinesByType();
 
       var unsaved = inlines.unsaved;
       var unsubmitted = inlines.unsubmitted;
       var undone = inlines.undone;
       var done = inlines.done;
       var draft_done = inlines.draftDone;
 
       JX.DOM.alterClass(
         node,
         'diff-banner-has-unsaved',
         !!unsaved.length);
 
       JX.DOM.alterClass(
         node,
         'diff-banner-has-unsubmitted',
         !!unsubmitted.length);
 
       JX.DOM.alterClass(
         node,
         'diff-banner-has-draft-done',
         !!draft_done.length);
 
       var pht = this.getTranslations();
       var unsaved_button = this._getUnsavedButton();
       var unsubmitted_button = this._getUnsubmittedButton();
       var done_button = this._getDoneButton();
       var menu_button = this._getMenuButton();
 
       if (unsaved.length) {
         unsaved_button.setText(unsaved.length + ' ' + pht('Unsaved'));
         JX.DOM.show(unsaved_button.getNode());
       } else {
         JX.DOM.hide(unsaved_button.getNode());
       }
 
       if (unsubmitted.length || draft_done.length) {
         var any_draft_count = unsubmitted.length + draft_done.length;
 
         unsubmitted_button.setText(any_draft_count + ' ' + pht('Unsubmitted'));
         JX.DOM.show(unsubmitted_button.getNode());
       } else {
         JX.DOM.hide(unsubmitted_button.getNode());
       }
 
       if (done.length || undone.length) {
         // If you haven't marked any comments as "Done", we just show text
         // like "3 Comments". If you've marked at least one done, we show
         // "1 / 3 Comments".
 
         var done_text;
         if (done.length) {
           done_text = [
             done.length,
             ' / ',
             (done.length + undone.length),
             ' ',
             pht('Comments')
           ];
         } else {
           done_text = [
             undone.length,
             ' ',
             pht('Comments')
           ];
         }
 
         done_button.setText(done_text);
 
         JX.DOM.show(done_button.getNode());
 
         // If any comments are not marked "Done", this cycles through the
         // missing comments. Otherwise, it cycles through all the saved
         // comments.
         if (undone.length) {
           this._doneMode = 'undone';
         } else {
           this._doneMode = 'done';
         }
 
       } else {
         JX.DOM.hide(done_button.getNode());
       }
 
       var path_view = [icon, ' ', changeset.getDisplayPath()];
 
       var buttons_attrs = {
         className: 'diff-banner-buttons'
       };
 
       var buttons_list = [
         unsaved_button.getNode(),
         unsubmitted_button.getNode(),
         done_button.getNode(),
         menu_button.getNode()
       ];
 
       var buttons_view = JX.$N('div', buttons_attrs, buttons_list);
 
       var icon = new JX.PHUIXIconView()
         .setIcon(changeset.getIcon())
         .getNode();
       JX.DOM.setContent(node, [buttons_view, path_view]);
 
       document.body.appendChild(node);
 
       if (formation) {
         formation.repaint();
       }
     },
 
     _getInlinesByType: function() {
       var changesets = this._changesets;
       var unsaved = [];
       var unsubmitted = [];
       var undone = [];
       var done = [];
       var draft_done = [];
 
       var visible_done = [];
       var visible_collapsed = [];
       var visible_ghosts = [];
       var visible = [];
       var hidden = [];
 
       for (var ii = 0; ii < changesets.length; ii++) {
         var inlines = changesets[ii].getInlines();
         var inline;
         var jj;
         for (jj = 0; jj < inlines.length; jj++) {
           inline = inlines[jj];
 
           if (inline.isDeleted()) {
             continue;
           }
 
           if (inline.isSynthetic()) {
             continue;
           }
 
           if (inline.isEditing()) {
             unsaved.push(inline);
           } else if (!inline.getID()) {
             // These are new comments which have been cancelled, and do not
             // count as anything.
             continue;
           } else if (inline.isDraft()) {
             unsubmitted.push(inline);
           } else {
             // NOTE: Unlike other states, an inline may be marked with a
             // draft checkmark and still be a "done" or "undone" comment.
             if (inline.isDraftDone()) {
               draft_done.push(inline);
             }
 
             if (!inline.isDone()) {
               undone.push(inline);
             } else {
               done.push(inline);
             }
           }
         }
 
         for (jj = 0; jj < inlines.length; jj++) {
           inline = inlines[jj];
           if (inline.isDeleted()) {
             continue;
           }
 
           if (inline.isEditing()) {
             continue;
           }
 
           if (inline.isHidden()) {
             hidden.push(inline);
             continue;
           }
 
           visible.push(inline);
 
           if (inline.isDone()) {
             visible_done.push(inline);
           }
 
           if (inline.isCollapsed()) {
             visible_collapsed.push(inline);
           }
 
           if (inline.isGhost()) {
             visible_ghosts.push(inline);
           }
         }
       }
 
       return {
         unsaved: unsaved,
         unsubmitted: unsubmitted,
         undone: undone,
         done: done,
         draftDone: draft_done,
         visibleDone: visible_done,
         visibleGhosts: visible_ghosts,
         visibleCollapsed: visible_collapsed,
         visible: visible,
         hidden: hidden
       };
 
     },
 
     _getUnsavedButton: function() {
       if (!this._unsavedButton) {
         var button = new JX.PHUIXButtonView()
           .setIcon('fa-commenting-o')
           .setButtonType(JX.PHUIXButtonView.BUTTONTYPE_SIMPLE);
 
         var node = button.getNode();
 
         var onunsaved = JX.bind(this, this._onunsavedclick);
         JX.DOM.listen(node, 'click', null, onunsaved);
 
         this._unsavedButton = button;
       }
 
       return this._unsavedButton;
     },
 
     _getUnsubmittedButton: function() {
       if (!this._unsubmittedButton) {
         var button = new JX.PHUIXButtonView()
           .setIcon('fa-comment-o')
           .setButtonType(JX.PHUIXButtonView.BUTTONTYPE_SIMPLE);
 
         var node = button.getNode();
 
         var onunsubmitted = JX.bind(this, this._onunsubmittedclick);
         JX.DOM.listen(node, 'click', null, onunsubmitted);
 
         this._unsubmittedButton = button;
       }
 
       return this._unsubmittedButton;
     },
 
     _getDoneButton: function() {
       if (!this._doneButton) {
         var button = new JX.PHUIXButtonView()
           .setIcon('fa-comment')
           .setButtonType(JX.PHUIXButtonView.BUTTONTYPE_SIMPLE);
 
         var node = button.getNode();
 
         var ondone = JX.bind(this, this._ondoneclick);
         JX.DOM.listen(node, 'click', null, ondone);
 
         this._doneButton = button;
       }
 
       return this._doneButton;
     },
 
     _getMenuButton: function() {
       if (!this._menuButton) {
         var pht = this.getTranslations();
 
         var button = new JX.PHUIXButtonView()
           .setIcon('fa-bars')
           .setButtonType(JX.PHUIXButtonView.BUTTONTYPE_SIMPLE)
           .setAuralLabel(pht('Display Options'));
 
         var dropdown = new JX.PHUIXDropdownMenu(button.getNode());
         this._menuItems = {};
 
         var list = new JX.PHUIXActionListView();
         dropdown.setContent(list.getNode());
 
         var map = {
           hideDone: {
             type: 'done'
           },
           hideCollapsed: {
             type: 'collapsed'
           },
           hideGhosts: {
             type: 'ghosts'
           },
           hideAll: {
             type: 'all'
           },
           showAll: {
             type: 'show'
           }
         };
 
         for (var k in map) {
           var spec = map[k];
 
           var handler = JX.bind(this, this._onhideinlines, spec.type);
           var item = new JX.PHUIXActionView()
             .setHandler(handler);
 
           list.addItem(item);
           this._menuItems[k] = item;
         }
 
         dropdown.listen('open', JX.bind(this, this._ondropdown));
 
         if (this.getInlineListURI()) {
           list.addItem(
             new JX.PHUIXActionView()
               .setDivider(true));
 
           list.addItem(
             new JX.PHUIXActionView()
               .setIcon('fa-external-link')
               .setName(pht('List Inline Comments'))
               .setHref(this.getInlineListURI()));
         }
 
         this._menuButton = button;
         this._dropdownMenu = dropdown;
       }
 
       return this._menuButton;
     },
 
     _ondropdown: function() {
       var inlines = this._getInlinesByType();
       var items = this._menuItems;
       var pht = this.getTranslations();
 
       items.hideDone
         .setName(pht('Hide "Done" Inlines'))
         .setDisabled(!inlines.visibleDone.length);
 
       items.hideCollapsed
         .setName(pht('Hide Collapsed Inlines'))
         .setDisabled(!inlines.visibleCollapsed.length);
 
       items.hideGhosts
         .setName(pht('Hide Older Inlines'))
         .setDisabled(!inlines.visibleGhosts.length);
 
       items.hideAll
         .setName(pht('Hide All Inlines'))
         .setDisabled(!inlines.visible.length);
 
       items.showAll
         .setName(pht('Show All Inlines'))
         .setDisabled(!inlines.hidden.length);
     },
 
     _onhideinlines: function(type, e) {
       this._dropdownMenu.close();
       e.prevent();
 
       this._toggleInlines(type);
     },
 
     _toggleInlines: function(type) {
       var inlines = this._getInlinesByType();
 
       // Clear the selection state since we end up in a weird place if the
       // user hides the selected inline.
       this._setSelectionState(null);
 
       var targets;
       var mode = true;
       switch (type) {
         case 'done':
           targets = inlines.visibleDone;
           break;
         case 'collapsed':
           targets = inlines.visibleCollapsed;
           break;
         case 'ghosts':
           targets = inlines.visibleGhosts;
           break;
         case 'all':
           targets = inlines.visible;
           break;
         case 'show':
           targets = inlines.hidden;
           mode = false;
           break;
       }
 
       for (var ii = 0; ii < targets.length; ii++) {
         targets[ii].setHidden(mode);
       }
     },
 
     _onunsavedclick: function(e) {
       e.kill();
 
       var options = {
         filter: 'comment',
         wrap: true,
         show: true,
         attribute: 'unsaved'
       };
 
       this._onjumpkey(1, options);
     },
 
     _onunsubmittedclick: function(e) {
       e.kill();
 
       var options = {
         filter: 'comment',
         wrap: true,
         show: true,
         attribute: 'anyDraft'
       };
 
       this._onjumpkey(1, options);
     },
 
     _ondoneclick: function(e) {
       e.kill();
 
       var options = {
         filter: 'comment',
         wrap: true,
         show: true,
         attribute: this._doneMode
       };
 
       this._onjumpkey(1, options);
     },
 
     _getBannerNode: function() {
       if (!this._bannerNode) {
         var attributes = {
           className: 'diff-banner',
           id: 'diff-banner'
         };
 
         this._bannerNode = JX.$N('div', attributes);
       }
 
       return this._bannerNode;
     },
 
     _getVisibleChangeset: function() {
       if (this.isAsleep()) {
         return null;
       }
 
       if (JX.Device.getDevice() != 'desktop') {
         return null;
       }
 
       // Never show the banner if we're very near the top of the page.
       var margin = 480;
       var s = JX.Vector.getScroll();
       if (s.y < margin) {
         return null;
       }
 
       // We're going to find the changeset which spans an invisible line a
       // little underneath the bottom of the banner. This makes the header
       // tick over from "A.txt" to "B.txt" just as "A.txt" scrolls completely
       // offscreen.
       var detect_height = 64;
 
       for (var ii = 0; ii < this._changesets.length; ii++) {
         var changeset = this._changesets[ii];
         var c = changeset.getVectors();
 
         // If the changeset starts above the line...
         if (c.pos.y <= (s.y + detect_height)) {
           // ...and ends below the line, this is the current visible changeset.
           if ((c.pos.y + c.dim.y) >= (s.y + detect_height)) {
             return changeset;
           }
         }
       }
 
       return null;
     },
 
     _getTreeView: function() {
       if (!this._treeView) {
         var tree = new JX.DiffTreeView();
 
         for (var ii = 0; ii < this._changesets.length; ii++) {
           var changeset = this._changesets[ii];
           tree.addPath(changeset.getPathView());
         }
 
         this._treeView = tree;
       }
       return this._treeView;
     },
 
     _redrawFiletree : function() {
       var formation = this.getFormationView();
 
       if (!formation) {
         return;
       }
 
       var filetree = formation.getColumn(0);
       var flank = filetree.getFlank();
 
       var flank_body = flank.getBodyNode();
 
       var tree = this._getTreeView();
       JX.DOM.setContent(flank_body, tree.getNode());
     },
 
     _setupInlineCommentListeners: function() {
       var onsave = JX.bind(this, this._onInlineEvent, 'save');
       JX.Stratcom.listen(
         ['submit', 'didSyntheticSubmit'],
         'inline-edit-form',
         onsave);
 
       var oncancel = JX.bind(this, this._onInlineEvent, 'cancel');
       JX.Stratcom.listen(
         'click',
         'inline-edit-cancel',
         oncancel);
 
       var onundo = JX.bind(this, this._onInlineEvent, 'undo');
       JX.Stratcom.listen(
         'click',
         'differential-inline-comment-undo',
         onundo);
 
       var onedit = JX.bind(this, this._onInlineEvent, 'edit');
       JX.Stratcom.listen(
         'click',
         ['differential-inline-comment', 'differential-inline-edit'],
         onedit);
 
       var ondone = JX.bind(this, this._onInlineEvent, 'done');
       JX.Stratcom.listen(
         'click',
         ['differential-inline-comment', 'differential-inline-done'],
         ondone);
 
       var ondelete = JX.bind(this, this._onInlineEvent, 'delete');
       JX.Stratcom.listen(
         'click',
         ['differential-inline-comment', 'differential-inline-delete'],
         ondelete);
 
       var onreply = JX.bind(this, this._onInlineEvent, 'reply');
       JX.Stratcom.listen(
         'click',
         ['differential-inline-comment', 'differential-inline-reply'],
         onreply);
 
       var ondraft = JX.bind(this, this._onInlineEvent, 'draft');
       JX.Stratcom.listen(
         'keydown',
         ['differential-inline-comment', 'tag:textarea'],
         ondraft);
 
       var on_preview_view = JX.bind(this, this._onPreviewEvent, 'view');
       JX.Stratcom.listen(
         'click',
         'differential-inline-preview-jump',
         on_preview_view);
     },
 
     _onPreviewEvent: function(action, e) {
       if (this.isAsleep()) {
         return;
       }
 
       var data = e.getNodeData('differential-inline-preview-jump');
       var inline = this.getInlineByID(data.inlineCommentID);
       if (!inline) {
         return;
       }
 
       e.kill();
 
       switch (action) {
         case 'view':
           this.selectInline(inline, true, true);
           break;
       }
     },
 
     _onInlineEvent: function(action, e) {
       if (this.isAsleep()) {
         return;
       }
 
       if (action !== 'draft') {
         e.kill();
       }
 
       var inline = this._getInlineForEvent(e);
       var is_ref = false;
 
       // If we don't have a natural inline object, the user may have clicked
       // an action (like "Delete") inside a preview element at the bottom of
       // the page.
 
       // If they did, try to find an associated normal inline to act on, and
       // pretend they clicked that instead. This makes the overall state of
       // the page more consistent.
 
       // However, there may be no normal inline (for example, because it is
       // on a version of the diff which is not visible). In this case, we
       // act by reference.
 
       if (inline === null) {
         var data = e.getNodeData('differential-inline-comment');
         inline = this.getInlineByID(data.id);
         if (inline) {
           is_ref = true;
         } else {
           switch (action) {
             case 'delete':
               this._deleteInlineByID(data.id);
               return;
           }
         }
       }
 
       // TODO: For normal operations, highlight the inline range here.
 
       switch (action) {
         case 'save':
           inline.save(e.getTarget());
           break;
         case 'cancel':
           inline.cancel();
           break;
         case 'undo':
           inline.undo();
           break;
         case 'edit':
           inline.edit();
           break;
         case 'done':
           inline.toggleDone();
           break;
         case 'delete':
           inline.delete(is_ref);
           break;
         case 'reply':
           inline.reply();
           break;
         case 'draft':
           inline.triggerDraft();
           break;
       }
     }
 
   }
 
 });
diff --git a/webroot/rsrc/js/application/diff/DiffInline.js b/webroot/rsrc/js/application/diff/DiffInline.js
index 81616c1915..d06562b957 100644
--- a/webroot/rsrc/js/application/diff/DiffInline.js
+++ b/webroot/rsrc/js/application/diff/DiffInline.js
@@ -1,879 +1,888 @@
 /**
  * @provides phabricator-diff-inline
  * @requires javelin-dom
  * @javelin
  */
 
 JX.install('DiffInline', {
 
   construct : function() {
   },
 
   members: {
     _id: null,
     _phid: null,
     _changesetID: null,
     _row: null,
     _number: null,
     _length: null,
     _displaySide: null,
     _isNewFile: null,
     _replyToCommentPHID: null,
     _originalText: null,
     _snippet: null,
+    _documentEngineKey: null,
 
     _isDeleted: false,
     _isInvisible: false,
     _isLoading: false,
 
     _changeset: null,
 
     _isCollapsed: false,
     _isDraft: null,
     _isDraftDone: null,
     _isFixed: null,
     _isEditing: false,
     _isNew: false,
     _isSynthetic: false,
     _isHidden: false,
 
     _editRow: null,
     _undoRow: null,
     _undoType: null,
     _undoText: null,
 
     _draftRequest: null,
     _skipFocus: false,
 
     bindToRow: function(row) {
       this._row = row;
 
       var row_data = JX.Stratcom.getData(row);
       row_data.inline = this;
       this._isCollapsed = row_data.hidden || false;
 
       // TODO: Get smarter about this once we do more editing, this is pretty
       // hacky.
       var comment = JX.DOM.find(row, 'div', 'differential-inline-comment');
       var data = JX.Stratcom.getData(comment);
 
       this._readInlineState(data);
       this._phid = data.phid;
 
       if (data.on_right) {
         this._displaySide = 'right';
       } else {
         this._displaySide = 'left';
       }
 
       this._number = parseInt(data.number, 10);
       this._length = parseInt(data.length, 10);
 
       var original = '' + data.original;
       if (original.length) {
         this._originalText = original;
       } else {
         this._originalText = null;
       }
       this._isNewFile = data.isNewFile;
 
       this._replyToCommentPHID = data.replyToCommentPHID;
 
       this._isDraft = data.isDraft;
       this._isFixed = data.isFixed;
       this._isGhost = data.isGhost;
       this._isSynthetic = data.isSynthetic;
       this._isDraftDone = data.isDraftDone;
 
       this._changesetID = data.changesetID;
       this._isNew = false;
       this._snippet = data.snippet;
+      this._documentEngineKey = data.documentEngineKey;
 
       this._isEditing = data.isEditing;
 
       if (this._isEditing) {
         // NOTE: The "original" shipped down in the DOM may reflect a draft
         // which we're currently editing. This flow is a little clumsy, but
         // reasonable until some future change moves away from "send down
         // the inline, then immediately click edit".
         this.edit(null, true);
       } else {
         this.setInvisible(false);
       }
 
       this._startDrafts();
 
       return this;
     },
 
     isDraft: function() {
       return this._isDraft;
     },
 
     isDone: function() {
       return this._isFixed;
     },
 
     isEditing: function() {
       return this._isEditing;
     },
 
     isUndo: function() {
       return !!this._undoRow;
     },
 
     isDeleted: function() {
       return this._isDeleted;
     },
 
     isSynthetic: function() {
       return this._isSynthetic;
     },
 
     isDraftDone: function() {
       return this._isDraftDone;
     },
 
     isHidden: function() {
       return this._isHidden;
     },
 
     isGhost: function() {
       return this._isGhost;
     },
 
     bindToRange: function(data) {
       this._displaySide = data.displaySide;
       this._number = parseInt(data.number, 10);
       this._length = parseInt(data.length, 10);
       this._isNewFile = data.isNewFile;
       this._changesetID = data.changesetID;
       this._isNew = true;
 
       // Insert the comment after any other comments which already appear on
       // the same row.
       var parent_row = JX.DOM.findAbove(data.target, 'tr');
       var target_row = parent_row.nextSibling;
       while (target_row && JX.Stratcom.hasSigil(target_row, 'inline-row')) {
         target_row = target_row.nextSibling;
       }
 
       var row = this._newRow();
       parent_row.parentNode.insertBefore(row, target_row);
 
       this.setInvisible(true);
       this._startDrafts();
 
       return this;
     },
 
     bindToReply: function(inline) {
       this._displaySide = inline._displaySide;
       this._number = inline._number;
       this._length = inline._length;
       this._isNewFile = inline._isNewFile;
       this._changesetID = inline._changesetID;
       this._isNew = true;
+      this._documentEngineKey = inline._documentEngineKey;
 
       this._replyToCommentPHID = inline._phid;
 
       var changeset = this.getChangeset();
 
       // We're going to figure out where in the document to position the new
       // inline. Normally, it goes after any existing inline rows (so if
       // several inlines reply to the same line, they appear in chronological
       // order).
 
       // However: if inlines are threaded, we want to put the new inline in
       // the right place in the thread. This might be somewhere in the middle,
       // so we need to do a bit more work to figure it out.
 
       // To find the right place in the thread, we're going to look for any
       // inline which is at or above the level of the comment we're replying
       // to. This means we've reached a new fork of the thread, and should
       // put our new inline before the comment we found.
       var ancestor_map = {};
       var ancestor = inline;
       var reply_phid;
       while (ancestor) {
         reply_phid = ancestor.getReplyToCommentPHID();
         if (!reply_phid) {
           break;
         }
         ancestor_map[reply_phid] = true;
         ancestor = changeset.getInlineByPHID(reply_phid);
       }
 
       var parent_row = inline._row;
       var target_row = parent_row.nextSibling;
       while (target_row && JX.Stratcom.hasSigil(target_row, 'inline-row')) {
         var target = changeset.getInlineForRow(target_row);
         reply_phid = target.getReplyToCommentPHID();
 
         // If we found an inline which is replying directly to some ancestor
         // of this new comment, this is where the new rows go.
         if (ancestor_map.hasOwnProperty(reply_phid)) {
           break;
         }
 
         target_row = target_row.nextSibling;
       }
 
       var row = this._newRow();
       parent_row.parentNode.insertBefore(row, target_row);
 
       this.setInvisible(true);
       this._startDrafts();
 
       return this;
     },
 
     setChangeset: function(changeset) {
       this._changeset = changeset;
       return this;
     },
 
     getChangeset: function() {
       return this._changeset;
     },
 
     setEditing: function(editing) {
       this._isEditing = editing;
       return this;
     },
 
     setHidden: function(hidden) {
       this._isHidden = hidden;
       this._redraw();
       return this;
     },
 
     canReply: function() {
       if (!this._hasAction('reply')) {
         return false;
       }
 
       return true;
     },
 
     canEdit: function() {
       if (!this._hasAction('edit')) {
         return false;
       }
 
       return true;
     },
 
     canDone: function() {
       if (!JX.DOM.scry(this._row, 'input', 'differential-inline-done').length) {
         return false;
       }
 
       return true;
     },
 
     canCollapse: function() {
       if (!JX.DOM.scry(this._row, 'a', 'hide-inline').length) {
         return false;
       }
 
       return true;
     },
 
     getRawText: function() {
       return this._originalText;
     },
 
     _hasAction: function(action) {
       var nodes = JX.DOM.scry(this._row, 'a', 'differential-inline-' + action);
       return (nodes.length > 0);
     },
 
     _newRow: function() {
       var attributes = {
         sigil: 'inline-row'
       };
 
       var row = JX.$N('tr', attributes);
 
       JX.Stratcom.getData(row).inline = this;
       this._row = row;
 
       this._id = null;
       this._phid = null;
       this._isCollapsed = false;
 
       this._originalText = null;
 
       return row;
     },
 
     setCollapsed: function(collapsed) {
       this._isCollapsed = collapsed;
 
       var op;
       if (collapsed) {
         op = 'hide';
       } else {
         op = 'show';
       }
 
       var inline_uri = this._getInlineURI();
       var comment_id = this._id;
 
       new JX.Workflow(inline_uri, {op: op, ids: comment_id})
         .setHandler(JX.bag)
         .start();
 
       this._redraw();
       this._didUpdate(true);
     },
 
     isCollapsed: function() {
       return this._isCollapsed;
     },
 
     toggleDone: function() {
       var uri = this._getInlineURI();
       var data = {
         op: 'done',
         id: this._id
       };
 
       var ondone = JX.bind(this, this._ondone);
 
       new JX.Workflow(uri, data)
         .setHandler(ondone)
         .start();
     },
 
     _ondone: function(response) {
       var checkbox = JX.DOM.find(
         this._row,
         'input',
         'differential-inline-done');
 
       checkbox.checked = (response.isChecked ? 'checked' : null);
 
       var comment = JX.DOM.findAbove(
         checkbox,
         'div',
         'differential-inline-comment');
 
       JX.DOM.alterClass(comment, 'inline-is-done', response.isChecked);
 
       // NOTE: This is marking the inline as having an unsubmitted checkmark,
       // as opposed to a submitted checkmark. This is different from the
       // top-level "draft" state of unsubmitted comments.
       JX.DOM.alterClass(comment, 'inline-state-is-draft', response.draftState);
 
       this._isFixed = response.isChecked;
       this._isDraftDone = !!response.draftState;
 
       this._didUpdate();
     },
 
     create: function(text) {
+      var changeset = this.getChangeset();
+      if (!this._documentEngineKey) {
+        this._documentEngineKey = changeset.getResponseDocumentEngineKey();
+      }
+
       var uri = this._getInlineURI();
       var handler = JX.bind(this, this._oncreateresponse);
       var data = this._newRequestData('new', text);
 
       this.setLoading(true);
 
       new JX.Request(uri, handler)
         .setData(data)
         .send();
     },
 
     reply: function(text) {
       var changeset = this.getChangeset();
       return changeset.newInlineReply(this, text);
     },
 
     edit: function(text, skip_focus) {
       this._skipFocus = !!skip_focus;
 
       // If you edit an inline ("A"), modify the text ("AB"), cancel, and then
       // edit it again: discard the undo state ("AB"). Otherwise we end up
       // with an open editor and an active "Undo" link, which is weird.
 
       if (this._undoRow) {
         JX.DOM.remove(this._undoRow);
         this._undoRow = null;
 
         this._undoType = null;
         this._undoText = null;
       }
 
       var uri = this._getInlineURI();
       var handler = JX.bind(this, this._oneditresponse);
 
       var data = this._newRequestData('edit', text || null);
 
       this.setLoading(true);
 
       new JX.Request(uri, handler)
         .setData(data)
         .send();
     },
 
     delete: function(is_ref) {
       var uri = this._getInlineURI();
       var handler = JX.bind(this, this._ondeleteresponse);
 
       // NOTE: This may be a direct delete (the user clicked on the inline
       // itself) or a "refdelete" (the user clicked somewhere else, like the
       // preview, but the inline is present on the page).
 
       // For a "refdelete", we prompt the user to confirm that they want to
       // delete the comment, because they can not undo deletions from the
       // preview. We could jump the user to the inline instead, but this would
       // be somewhat disruptive and make deleting several comments more
       // difficult.
 
       var op;
       if (is_ref) {
         op = 'refdelete';
       } else {
         op = 'delete';
       }
 
       var data = this._newRequestData(op);
 
       this.setLoading(true);
 
       new JX.Workflow(uri, data)
         .setHandler(handler)
         .start();
     },
 
     getDisplaySide: function() {
       return this._displaySide;
     },
 
     getLineNumber: function() {
       return this._number;
     },
 
     getLineLength: function() {
       return this._length;
     },
 
     isNewFile: function() {
       return this._isNewFile;
     },
 
     getID: function() {
       return this._id;
     },
 
     getPHID: function() {
       return this._phid;
     },
 
     getChangesetID: function() {
       return this._changesetID;
     },
 
     getReplyToCommentPHID: function() {
       return this._replyToCommentPHID;
     },
 
     setDeleted: function(deleted) {
       this._isDeleted = deleted;
       this._redraw();
       return this;
     },
 
     setInvisible: function(invisible) {
       this._isInvisible = invisible;
       this._redraw();
       return this;
     },
 
     setLoading: function(loading) {
       this._isLoading = loading;
       this._redraw();
       return this;
     },
 
     _newRequestData: function(operation, text) {
       return {
         op: operation,
         id: this._id,
         on_right: ((this.getDisplaySide() == 'right') ? 1 : 0),
         renderer: this.getChangeset().getRendererKey(),
         number: this.getLineNumber(),
         length: this.getLineLength(),
         is_new: this.isNewFile(),
         changesetID: this.getChangesetID(),
-        replyToCommentPHID: this.getReplyToCommentPHID() || '',
-        text: text || ''
+        replyToCommentPHID: this.getReplyToCommentPHID(),
+        text: text || null,
+        documentEngineKey: this._documentEngineKey,
       };
     },
 
     _oneditresponse: function(response) {
       var rows = JX.$H(response.view).getNode();
 
       this._readInlineState(response.inline);
       this._drawEditRows(rows);
 
       this.setLoading(false);
       this.setInvisible(true);
     },
 
     _oncreateresponse: function(response) {
       var rows = JX.$H(response.view).getNode();
 
       this._readInlineState(response.inline);
       this._drawEditRows(rows);
     },
 
     _readInlineState: function(state) {
       this._id = state.id;
     },
 
     _ondeleteresponse: function() {
       // If there's an existing "unedit" undo element, remove it.
       if (this._undoRow) {
         JX.DOM.remove(this._undoRow);
         this._undoRow = null;
       }
 
       // If there's an existing editor, remove it. This happens when you
       // delete a comment from the comment preview area. In this case, we
       // read and preserve the text so "Undo" restores it.
       var text;
       if (this._editRow) {
         text = this._readText(this._editRow);
         JX.DOM.remove(this._editRow);
         this._editRow = null;
       }
 
       this._drawUndeleteRows(text);
 
       this.setLoading(false);
       this.setDeleted(true);
 
       this._didUpdate();
     },
 
     _drawUndeleteRows: function(text) {
       this._undoType = 'undelete';
       this._undoText = text || null;
 
       return this._drawUndoRows('undelete', this._row);
     },
 
     _drawUneditRows: function(text) {
       this._undoType = 'unedit';
       this._undoText = text;
 
       return this._drawUndoRows('unedit', null, text);
     },
 
     _drawUndoRows: function(mode, cursor, text) {
       var templates = this.getChangeset().getUndoTemplates();
 
       var template;
       if (this.getDisplaySide() == 'right') {
         template = templates.r;
       } else {
         template = templates.l;
       }
       template = JX.$H(template).getNode();
 
       this._undoRow = this._drawRows(template, cursor, mode, text);
     },
 
     _drawContentRows: function(rows) {
       return this._drawRows(rows, null, 'content');
     },
 
     _drawEditRows: function(rows) {
       this.setEditing(true);
       this._editRow = this._drawRows(rows, null, 'edit');
     },
 
     _drawRows: function(rows, cursor, type, text) {
       var first_row = JX.DOM.scry(rows, 'tr')[0];
       var row = first_row;
       var anchor = cursor || this._row;
       cursor = cursor || this._row.nextSibling;
 
 
       var result_row;
       var next_row;
       while (row) {
         // Grab this first, since it's going to change once we insert the row
         // into the document.
         next_row = row.nextSibling;
 
         // Bind edit and undo rows to this DiffInline object so that
         // interactions like hovering work properly.
         JX.Stratcom.getData(row).inline = this;
 
         anchor.parentNode.insertBefore(row, cursor);
         cursor = row;
 
         if (!result_row) {
           result_row = row;
         }
 
         if (!this._skipFocus) {
           // If the row has a textarea, focus it. This allows the user to start
           // typing a comment immediately after a "new", "edit", or "reply"
           // action.
 
           // (When simulating an "edit" on page load, we don't do this.)
 
           var textareas = JX.DOM.scry(
             row,
             'textarea',
             'differential-inline-comment-edit-textarea');
           if (textareas.length) {
             var area = textareas[0];
             area.focus();
 
             var length = area.value.length;
             JX.TextAreaUtils.setSelectionRange(area, length, length);
           }
         }
 
         row = next_row;
       }
 
       JX.Stratcom.invoke('resize');
 
       return result_row;
     },
 
     save: function(form) {
       var handler = JX.bind(this, this._onsubmitresponse);
 
       this.setLoading(true);
 
       JX.Workflow.newFromForm(form)
         .setHandler(handler)
         .start();
     },
 
     undo: function() {
       JX.DOM.remove(this._undoRow);
       this._undoRow = null;
 
       if (this._undoType === 'undelete') {
         var uri = this._getInlineURI();
         var data = this._newRequestData('undelete');
         var handler = JX.bind(this, this._onundelete);
 
         this.setDeleted(false);
         this.setLoading(true);
 
         new JX.Request(uri, handler)
           .setData(data)
           .send();
       }
 
       if (this._undoText !== null) {
         this.edit(this._undoText);
       }
     },
 
     _onundelete: function() {
       this.setLoading(false);
       this._didUpdate();
     },
 
     cancel: function() {
       var text = this._readText(this._editRow);
 
       JX.DOM.remove(this._editRow);
       this._editRow = null;
 
       if (text && text.length && (text != this._originalText)) {
         this._drawUneditRows(text);
       }
 
       this.setEditing(false);
 
       // If this was an empty box and we typed some text and then hit cancel,
       // don't show the empty concrete inline.
       if (!this._originalText) {
         this.setInvisible(true);
       } else {
         this.setInvisible(false);
       }
 
       // If you "undo" to restore text ("AB") and then "Cancel", we put you
       // back in the original text state ("A"). We also send the original
       // text ("A") to the server as the current persistent state.
 
       var uri = this._getInlineURI();
       var data = this._newRequestData('cancel', this._originalText);
       var handler = JX.bind(this, this._onCancelResponse);
 
       this.setLoading(true);
 
       new JX.Request(uri, handler)
         .setData(data)
         .send();
 
       this._didUpdate(true);
     },
 
     _onCancelResponse: function(response) {
       this.setLoading(false);
 
       // If the comment was empty when we started editing it (there's no
       // original text) and empty when we finished editing it (there's no
       // undo row), just delete the comment.
       if (!this._originalText && !this.isUndo()) {
         this.setDeleted(true);
 
         JX.DOM.remove(this._row);
         this._row = null;
 
         this._didUpdate();
       }
     },
 
     _readText: function(row) {
       var textarea;
       try {
         textarea = JX.DOM.find(
           row,
           'textarea',
           'differential-inline-comment-edit-textarea');
       } catch (ex) {
         return null;
       }
 
       return textarea.value;
     },
 
     _onsubmitresponse: function(response) {
       if (this._editRow) {
         JX.DOM.remove(this._editRow);
         this._editRow = null;
       }
 
       this.setLoading(false);
       this.setInvisible(false);
       this.setEditing(false);
 
       this._onupdate(response);
     },
 
     _onupdate: function(response) {
       var new_row;
       if (response.view) {
         new_row = this._drawContentRows(JX.$H(response.view).getNode());
       }
 
       // TODO: Save the old row so the action it's undo-able if it was a
       // delete.
       var remove_old = true;
       if (remove_old) {
         JX.DOM.remove(this._row);
       }
 
       // If you delete the content on a comment and save it, it acts like a
       // delete: the server does not return a new row.
       if (new_row) {
         this.bindToRow(new_row);
       } else {
         this.setDeleted(true);
         this._row = null;
       }
 
       this._didUpdate();
     },
 
     _didUpdate: function(local_only) {
       // After making changes to inline comments, refresh the transaction
       // preview at the bottom of the page.
       if (!local_only) {
         this.getChangeset().getChangesetList().redrawPreview();
       }
 
       this.getChangeset().getChangesetList().redrawCursor();
       this.getChangeset().getChangesetList().resetHover();
 
       // Emit a resize event so that UI elements like the keyboard focus
       // reticle can redraw properly.
       JX.Stratcom.invoke('resize');
     },
 
     _redraw: function() {
       var is_invisible =
         (this._isInvisible || this._isDeleted || this._isHidden);
       var is_loading = this._isLoading;
       var is_collapsed = (this._isCollapsed && !this._isHidden);
 
       var row = this._row;
       JX.DOM.alterClass(row, 'differential-inline-hidden', is_invisible);
       JX.DOM.alterClass(row, 'differential-inline-loading', is_loading);
       JX.DOM.alterClass(row, 'inline-hidden', is_collapsed);
     },
 
     _getInlineURI: function() {
       var changeset = this.getChangeset();
       var list = changeset.getChangesetList();
       return list.getInlineURI();
     },
 
     _startDrafts: function() {
       if (this._draftRequest) {
         return;
       }
 
       var onresponse = JX.bind(this, this._onDraftResponse);
       var draft = JX.bind(this, this._getDraftState);
 
       var uri = this._getInlineURI();
       var request = new JX.PhabricatorShapedRequest(uri, onresponse, draft);
 
       // The main transaction code uses a 500ms delay on desktop and a
       // 10s delay on mobile. Perhaps this should be standardized.
       request.setRateLimit(2000);
 
       this._draftRequest = request;
 
       request.start();
     },
 
     _onDraftResponse: function() {
       // For now, do nothing.
     },
 
     _getDraftState: function() {
       if (this.isDeleted()) {
         return null;
       }
 
       if (!this.isEditing()) {
         return null;
       }
 
       var text = this._readText(this._editRow);
       if (text === null) {
         return null;
       }
 
       return {
         op: 'draft',
         id: this.getID(),
         text: text
       };
     },
 
     triggerDraft: function() {
       if (this._draftRequest) {
         this._draftRequest.trigger();
       }
     }
 
   }
 
 });