diff --git a/src/applications/differential/controller/DifferentialChangesetViewController.php b/src/applications/differential/controller/DifferentialChangesetViewController.php
index 35793a2108..fe6163feb9 100644
--- a/src/applications/differential/controller/DifferentialChangesetViewController.php
+++ b/src/applications/differential/controller/DifferentialChangesetViewController.php
@@ -1,458 +1,464 @@
 <?php
 
 final class DifferentialChangesetViewController extends DifferentialController {
 
   public function shouldAllowPublic() {
     return true;
   }
 
   public function handleRequest(AphrontRequest $request) {
     $viewer = $this->getViewer();
 
     $rendering_reference = $request->getStr('ref');
     $parts = explode('/', $rendering_reference);
     if (count($parts) == 2) {
       list($id, $vs) = $parts;
     } else {
       $id = $parts[0];
       $vs = 0;
     }
 
     $id = (int)$id;
     $vs = (int)$vs;
 
     $load_ids = array($id);
     if ($vs && ($vs != -1)) {
       $load_ids[] = $vs;
     }
 
     $changesets = id(new DifferentialChangesetQuery())
       ->setViewer($viewer)
       ->withIDs($load_ids)
       ->needHunks(true)
       ->execute();
     $changesets = mpull($changesets, null, 'getID');
 
     $changeset = idx($changesets, $id);
     if (!$changeset) {
       return new Aphront404Response();
     }
 
     $vs_changeset = null;
     if ($vs && ($vs != -1)) {
       $vs_changeset = idx($changesets, $vs);
       if (!$vs_changeset) {
         return new Aphront404Response();
       }
     }
 
     $view = $request->getStr('view');
     if ($view) {
       $phid = idx($changeset->getMetadata(), "$view:binary-phid");
       if ($phid) {
         return id(new AphrontRedirectResponse())->setURI("/file/info/$phid/");
       }
       switch ($view) {
         case 'new':
           return $this->buildRawFileResponse($changeset, $is_new = true);
         case 'old':
           if ($vs_changeset) {
             return $this->buildRawFileResponse($vs_changeset, $is_new = true);
           }
           return $this->buildRawFileResponse($changeset, $is_new = false);
         default:
           return new Aphront400Response();
       }
     }
 
     $old = array();
     $new = array();
     if (!$vs) {
       $right = $changeset;
       $left  = null;
 
       $right_source = $right->getID();
       $right_new = true;
       $left_source = $right->getID();
       $left_new = false;
 
       $render_cache_key = $right->getID();
 
       $old[] = $changeset;
       $new[] = $changeset;
     } else if ($vs == -1) {
       $right = null;
       $left = $changeset;
 
       $right_source = $left->getID();
       $right_new = false;
       $left_source = $left->getID();
       $left_new = true;
 
       $render_cache_key = null;
 
       $old[] = $changeset;
       $new[] = $changeset;
     } else {
       $right = $changeset;
       $left = $vs_changeset;
 
       $right_source = $right->getID();
       $right_new = true;
       $left_source = $left->getID();
       $left_new = true;
 
       $render_cache_key = null;
 
       $new[] = $left;
       $new[] = $right;
     }
 
     if ($left) {
       $left_data = $left->makeNewFile();
+      $left_properties = $left->getNewProperties();
       if ($right) {
         $right_data = $right->makeNewFile();
+        $right_properties = $right->getNewProperties();
       } else {
         $right_data = $left->makeOldFile();
+        $right_properties = $left->getOldProperties();
       }
 
       $engine = new PhabricatorDifferenceEngine();
       $synthetic = $engine->generateChangesetFromFileContent(
         $left_data,
         $right_data);
 
       $choice = clone nonempty($left, $right);
       $choice->attachHunks($synthetic->getHunks());
 
+      $choice->setOldProperties($left_properties);
+      $choice->setNewProperties($right_properties);
+
       $changeset = $choice;
     }
 
     if ($left_new || $right_new) {
       $diff_map = array();
       if ($left) {
         $diff_map[] = $left->getDiff();
       }
       if ($right) {
         $diff_map[] = $right->getDiff();
       }
       $diff_map = mpull($diff_map, null, 'getPHID');
 
       $buildables = id(new HarbormasterBuildableQuery())
         ->setViewer($viewer)
         ->withBuildablePHIDs(array_keys($diff_map))
         ->withManualBuildables(false)
         ->needBuilds(true)
         ->needTargets(true)
         ->execute();
       $buildables = mpull($buildables, null, 'getBuildablePHID');
       foreach ($diff_map as $diff_phid => $changeset_diff) {
         $changeset_diff->attachBuildable(idx($buildables, $diff_phid));
       }
     }
 
     $coverage = null;
     if ($right_new) {
       $coverage = $this->loadCoverage($right);
     }
 
     $spec = $request->getStr('range');
     list($range_s, $range_e, $mask) =
       DifferentialChangesetParser::parseRangeSpecification($spec);
 
     $parser = id(new DifferentialChangesetParser())
       ->setCoverage($coverage)
       ->setChangeset($changeset)
       ->setRenderingReference($rendering_reference)
       ->setRenderCacheKey($render_cache_key)
       ->setRightSideCommentMapping($right_source, $right_new)
       ->setLeftSideCommentMapping($left_source, $left_new);
 
     $parser->readParametersFromRequest($request);
 
     if ($left && $right) {
       $parser->setOriginals($left, $right);
     }
 
     $diff = $changeset->getDiff();
     $revision_id = $diff->getRevisionID();
 
     $can_mark = false;
     $object_owner_phid = null;
     $revision = null;
     if ($revision_id) {
       $revision = id(new DifferentialRevisionQuery())
         ->setViewer($viewer)
         ->withIDs(array($revision_id))
         ->executeOne();
       if ($revision) {
         $can_mark = ($revision->getAuthorPHID() == $viewer->getPHID());
         $object_owner_phid = $revision->getAuthorPHID();
       }
     }
 
     // Load both left-side and right-side inline comments.
     if ($revision) {
       $query = id(new DifferentialInlineCommentQuery())
         ->setViewer($viewer)
         ->needHidden(true)
         ->withRevisionPHIDs(array($revision->getPHID()));
       $inlines = $query->execute();
       $inlines = $query->adjustInlinesForChangesets(
         $inlines,
         $old,
         $new,
         $revision);
     } else {
       $inlines = array();
     }
 
     if ($left_new) {
       $inlines = array_merge(
         $inlines,
         $this->buildLintInlineComments($left));
     }
 
     if ($right_new) {
       $inlines = array_merge(
         $inlines,
         $this->buildLintInlineComments($right));
     }
 
     $phids = array();
     foreach ($inlines as $inline) {
       $parser->parseInlineComment($inline);
       if ($inline->getAuthorPHID()) {
         $phids[$inline->getAuthorPHID()] = true;
       }
     }
     $phids = array_keys($phids);
 
     $handles = $this->loadViewerHandles($phids);
     $parser->setHandles($handles);
 
     $engine = new PhabricatorMarkupEngine();
     $engine->setViewer($viewer);
 
     foreach ($inlines as $inline) {
       $engine->addObject(
         $inline,
         PhabricatorInlineCommentInterface::MARKUP_FIELD_BODY);
     }
 
     $engine->process();
 
     $parser
       ->setUser($viewer)
       ->setMarkupEngine($engine)
       ->setShowEditAndReplyLinks(true)
       ->setCanMarkDone($can_mark)
       ->setObjectOwnerPHID($object_owner_phid)
       ->setRange($range_s, $range_e)
       ->setMask($mask);
 
     if ($request->isAjax()) {
       // NOTE: We must render the changeset before we render coverage
       // information, since it builds some caches.
       $rendered_changeset = $parser->renderChangeset();
 
       $mcov = $parser->renderModifiedCoverage();
 
       $coverage_data = array(
         'differential-mcoverage-'.md5($changeset->getFilename()) => $mcov,
       );
 
       return id(new PhabricatorChangesetResponse())
         ->setRenderedChangeset($rendered_changeset)
         ->setCoverage($coverage_data)
         ->setUndoTemplates($parser->getRenderer()->renderUndoTemplates());
     }
 
     $detail = id(new DifferentialChangesetListView())
       ->setUser($this->getViewer())
       ->setChangesets(array($changeset))
       ->setVisibleChangesets(array($changeset))
       ->setRenderingReferences(array($rendering_reference))
       ->setRenderURI('/differential/changeset/')
       ->setDiff($diff)
       ->setTitle(pht('Standalone View'))
       ->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
       ->setIsStandalone(true)
       ->setParser($parser);
 
     if ($revision_id) {
       $detail->setInlineCommentControllerURI(
         '/differential/comment/inline/edit/'.$revision_id.'/');
     }
 
     $crumbs = $this->buildApplicationCrumbs();
 
     if ($revision_id) {
       $crumbs->addTextCrumb('D'.$revision_id, '/D'.$revision_id);
     }
 
     $diff_id = $diff->getID();
     if ($diff_id) {
       $crumbs->addTextCrumb(
         pht('Diff %d', $diff_id),
         $this->getApplicationURI('diff/'.$diff_id));
     }
 
     $crumbs->addTextCrumb($changeset->getDisplayFilename());
     $crumbs->setBorder(true);
 
     $header = id(new PHUIHeaderView())
       ->setHeader(pht('Changeset View'))
       ->setHeaderIcon('fa-gear');
 
     $view = id(new PHUITwoColumnView())
       ->setHeader($header)
       ->setFooter($detail);
 
     return $this->newPage()
       ->setTitle(pht('Changeset View'))
       ->setCrumbs($crumbs)
       ->appendChild($view);
   }
 
   private function buildRawFileResponse(
     DifferentialChangeset $changeset,
     $is_new) {
 
     $viewer = $this->getViewer();
 
     if ($is_new) {
       $key = 'raw:new:phid';
     } else {
       $key = 'raw:old:phid';
     }
 
     $metadata = $changeset->getMetadata();
 
     $file = null;
     $phid = idx($metadata, $key);
     if ($phid) {
       $file = id(new PhabricatorFileQuery())
         ->setViewer($viewer)
         ->withPHIDs(array($phid))
         ->execute();
       if ($file) {
         $file = head($file);
       }
     }
 
     if (!$file) {
       // This is just building a cache of the changeset content in the file
       // tool, and is safe to run on a read pathway.
       $unguard = AphrontWriteGuard::beginScopedUnguardedWrites();
 
       if ($is_new) {
         $data = $changeset->makeNewFile();
       } else {
         $data = $changeset->makeOldFile();
       }
 
       $diff = $changeset->getDiff();
 
       $file = PhabricatorFile::newFromFileData(
         $data,
         array(
           'name' => $changeset->getFilename(),
           'mime-type' => 'text/plain',
           'ttl.relative' => phutil_units('24 hours in seconds'),
           'viewPolicy' => PhabricatorPolicies::POLICY_NOONE,
         ));
 
       $file->attachToObject($diff->getPHID());
 
       $metadata[$key] = $file->getPHID();
       $changeset->setMetadata($metadata);
       $changeset->save();
 
       unset($unguard);
     }
 
     return $file->getRedirectResponse();
   }
 
   private function buildLintInlineComments($changeset) {
     $diff = $changeset->getDiff();
 
     $target_phids = $diff->getBuildTargetPHIDs();
     if (!$target_phids) {
       return array();
     }
 
     $messages = id(new HarbormasterBuildLintMessage())->loadAllWhere(
       'buildTargetPHID IN (%Ls) AND path = %s',
       $target_phids,
       $changeset->getFilename());
 
     if (!$messages) {
       return array();
     }
 
     $change_type = $changeset->getChangeType();
     if (DifferentialChangeType::isDeleteChangeType($change_type)) {
       // If this is a lint message on a deleted file, show it on the left
       // side of the UI because there are no source code lines on the right
       // side of the UI so inlines don't have anywhere to render. See PHI416.
       $is_new = 0;
     } else {
       $is_new = 1;
     }
 
     $template = id(new DifferentialInlineComment())
       ->setChangesetID($changeset->getID())
       ->setIsNewFile($is_new)
       ->setLineLength(0);
 
     $inlines = array();
     foreach ($messages as $message) {
       $description = $message->getProperty('description');
 
       $inlines[] = id(clone $template)
         ->setSyntheticAuthor(pht('Lint: %s', $message->getName()))
         ->setLineNumber($message->getLine())
         ->setContent($description);
     }
 
     return $inlines;
   }
 
   private function loadCoverage(DifferentialChangeset $changeset) {
     $viewer = $this->getViewer();
 
     $target_phids = $changeset->getDiff()->getBuildTargetPHIDs();
     if (!$target_phids) {
       return null;
     }
 
     $unit = id(new HarbormasterBuildUnitMessageQuery())
       ->setViewer($viewer)
       ->withBuildTargetPHIDs($target_phids)
       ->execute();
     if (!$unit) {
       return null;
     }
 
     $coverage = array();
     foreach ($unit as $message) {
       $test_coverage = $message->getProperty('coverage');
       if ($test_coverage === null) {
         continue;
       }
       $coverage_data = idx($test_coverage, $changeset->getFileName());
       if (!strlen($coverage_data)) {
         continue;
       }
       $coverage[] = $coverage_data;
     }
 
     if (!$coverage) {
       return null;
     }
 
     return ArcanistUnitTestResult::mergeCoverage($coverage);
   }
 
 }