diff --git a/src/applications/differential/controller/DifferentialRevisionOperationController.php b/src/applications/differential/controller/DifferentialRevisionOperationController.php
index 6ec5b8edec..85f2a0b1b2 100644
--- a/src/applications/differential/controller/DifferentialRevisionOperationController.php
+++ b/src/applications/differential/controller/DifferentialRevisionOperationController.php
@@ -1,113 +1,153 @@
 <?php
 
 final class DifferentialRevisionOperationController
   extends DifferentialController {
 
   public function handleRequest(AphrontRequest $request) {
     $viewer = $this->getViewer();
     $id = $request->getURIData('id');
 
     $revision = id(new DifferentialRevisionQuery())
       ->withIDs(array($id))
       ->setViewer($viewer)
       ->needActiveDiffs(true)
       ->executeOne();
     if (!$revision) {
       return new Aphront404Response();
     }
 
     $detail_uri = "/D{$id}";
 
     $repository = $revision->getRepository();
     if (!$repository) {
       return $this->rejectOperation(
         $revision,
         pht('No Repository'),
         pht(
           'This revision is not associated with a known repository. Only '.
           'revisions associated with a tracked repository can be landed '.
           'automatically.'));
     }
 
     if (!$repository->canPerformAutomation()) {
       return $this->rejectOperation(
         $revision,
         pht('No Repository Automation'),
         pht(
           'The repository this revision is associated with ("%s") is not '.
           'configured to support automation. Configure automation for the '.
           'repository to enable revisions to be landed automatically.',
           $repository->getMonogram()));
     }
 
     // TODO: At some point we should allow installs to give "land reviewed
     // code" permission to more users than "push any commit", because it is
     // a much less powerful operation. For now, just require push so this
     // doesn't do anything users can't do on their own.
     $can_push = PhabricatorPolicyFilter::hasCapability(
       $viewer,
       $repository,
       DiffusionPushCapability::CAPABILITY);
     if (!$can_push) {
       return $this->rejectOperation(
         $revision,
         pht('Unable to Push'),
         pht(
           'You do not have permission to push to the repository this '.
           'revision is associated with ("%s"), so you can not land it.',
           $repository->getMonogram()));
     }
 
+    $op = new DrydockLandRepositoryOperation();
+
+    // Check for other operations. Eventually this should probably be more
+    // general (e.g., it's OK to land to multiple different branches
+    // simultaneously) but just put this in as a sanity check for now.
+    $other_operations = id(new DrydockRepositoryOperationQuery())
+      ->setViewer($viewer)
+      ->withObjectPHIDs(array($revision->getPHID()))
+      ->withOperationTypes(
+        array(
+          $op->getOperationConstant(),
+        ))
+      ->withOperationStates(
+        array(
+          DrydockRepositoryOperation::STATE_WAIT,
+          DrydockRepositoryOperation::STATE_WORK,
+          DrydockRepositoryOperation::STATE_DONE,
+        ))
+      ->execute();
+
+    if ($other_operations) {
+      $any_done = false;
+      foreach ($other_operations as $operation) {
+        if ($operation->isDone()) {
+          $any_done = true;
+          break;
+        }
+      }
+
+      if ($any_done) {
+        return $this->rejectOperation(
+          $revision,
+          pht('Already Complete'),
+          pht('This revision has already landed.'));
+      } else {
+        return $this->rejectOperation(
+          $revision,
+          pht('Already In Flight'),
+          pht('This revision is already landing.'));
+      }
+    }
+
     if ($request->isFormPost()) {
       // NOTE: The operation is locked to the current active diff, so if the
       // revision is updated before the operation applies nothing sneaky
       // occurs.
 
       $diff = $revision->getActiveDiff();
 
-      $op = new DrydockLandRepositoryOperation();
-
       $operation = DrydockRepositoryOperation::initializeNewOperation($op)
         ->setAuthorPHID($viewer->getPHID())
         ->setObjectPHID($revision->getPHID())
         ->setRepositoryPHID($repository->getPHID())
         ->setRepositoryTarget('branch:master')
         ->setProperty('differential.diffPHID', $diff->getPHID());
 
       $operation->save();
       $operation->scheduleUpdate();
 
       return id(new AphrontRedirectResponse())
         ->setURI($detail_uri);
     }
 
     return $this->newDialog()
       ->setTitle(pht('Land Revision'))
       ->appendParagraph(
         pht(
           'In theory, this will do approximately what `arc land` would do. '.
           'In practice, that is almost certainly not what it will actually '.
           'do.'))
       ->appendParagraph(
         pht(
           'THIS FEATURE IS EXPERIMENTAL AND DANGEROUS! USE IT AT YOUR '.
           'OWN RISK!'))
       ->addCancelButton($detail_uri)
       ->addSubmitButton(pht('Mutate Repository Unpredictably'));
   }
 
   private function rejectOperation(
     DifferentialRevision $revision,
     $title,
     $body) {
 
     $id = $revision->getID();
     $detail_uri = "/D{$id}";
 
     return $this->newDialog()
       ->setTitle($title)
       ->appendParagraph($body)
       ->addCancelButton($detail_uri);
   }
 
 }
diff --git a/src/applications/differential/controller/DifferentialRevisionViewController.php b/src/applications/differential/controller/DifferentialRevisionViewController.php
index f6c90362df..f05b6ab97d 100644
--- a/src/applications/differential/controller/DifferentialRevisionViewController.php
+++ b/src/applications/differential/controller/DifferentialRevisionViewController.php
@@ -1,1072 +1,1085 @@
 <?php
 
 final class DifferentialRevisionViewController extends DifferentialController {
 
   private $revisionID;
 
   public function shouldAllowPublic() {
     return true;
   }
 
   public function handleRequest(AphrontRequest $request) {
     $viewer = $this->getViewer();
     $this->revisionID = $request->getURIData('id');
 
     $viewer_is_anonymous = !$viewer->isLoggedIn();
 
     $revision = id(new DifferentialRevisionQuery())
       ->withIDs(array($this->revisionID))
       ->setViewer($request->getUser())
       ->needRelationships(true)
       ->needReviewerStatus(true)
       ->needReviewerAuthority(true)
       ->executeOne();
 
     if (!$revision) {
       return new Aphront404Response();
     }
 
     $diffs = id(new DifferentialDiffQuery())
       ->setViewer($request->getUser())
       ->withRevisionIDs(array($this->revisionID))
       ->execute();
     $diffs = array_reverse($diffs, $preserve_keys = true);
 
     if (!$diffs) {
       throw new Exception(
         pht('This revision has no diffs. Something has gone quite wrong.'));
     }
 
     $revision->attachActiveDiff(last($diffs));
 
     $diff_vs = $request->getInt('vs');
 
     $target_id = $request->getInt('id');
     $target = idx($diffs, $target_id, end($diffs));
 
     $target_manual = $target;
     if (!$target_id) {
       foreach ($diffs as $diff) {
         if ($diff->getCreationMethod() != 'commit') {
           $target_manual = $diff;
         }
       }
     }
 
     if (empty($diffs[$diff_vs])) {
       $diff_vs = null;
     }
 
     $repository = null;
     $repository_phid = $target->getRepositoryPHID();
     if ($repository_phid) {
       if ($repository_phid == $revision->getRepositoryPHID()) {
         $repository = $revision->getRepository();
       } else {
         $repository = id(new PhabricatorRepositoryQuery())
           ->setViewer($viewer)
           ->withPHIDs(array($repository_phid))
           ->executeOne();
       }
     }
 
     list($changesets, $vs_map, $vs_changesets, $rendering_references) =
       $this->loadChangesetsAndVsMap(
         $target,
         idx($diffs, $diff_vs),
         $repository);
 
     if ($request->getExists('download')) {
       return $this->buildRawDiffResponse(
         $revision,
         $changesets,
         $vs_changesets,
         $vs_map,
         $repository);
     }
 
     $map = $vs_map;
     if (!$map) {
       $map = array_fill_keys(array_keys($changesets), 0);
     }
 
     $old_ids = array();
     $new_ids = array();
     foreach ($map as $id => $vs) {
       if ($vs <= 0) {
         $old_ids[] = $id;
         $new_ids[] = $id;
       } else {
         $new_ids[] = $id;
         $new_ids[] = $vs;
       }
     }
 
     $props = id(new DifferentialDiffProperty())->loadAllWhere(
       'diffID = %d',
       $target_manual->getID());
     $props = mpull($props, 'getData', 'getName');
 
     $object_phids = array_merge(
       $revision->getReviewers(),
       $revision->getCCPHIDs(),
       $revision->loadCommitPHIDs(),
       array(
         $revision->getAuthorPHID(),
         $viewer->getPHID(),
       ));
 
     foreach ($revision->getAttached() as $type => $phids) {
       foreach ($phids as $phid => $info) {
         $object_phids[] = $phid;
       }
     }
 
     $field_list = PhabricatorCustomField::getObjectFields(
       $revision,
       PhabricatorCustomField::ROLE_VIEW);
 
     $field_list->setViewer($viewer);
     $field_list->readFieldsFromStorage($revision);
 
     $warning_handle_map = array();
     foreach ($field_list->getFields() as $key => $field) {
       $req = $field->getRequiredHandlePHIDsForRevisionHeaderWarnings();
       foreach ($req as $phid) {
         $warning_handle_map[$key][] = $phid;
         $object_phids[] = $phid;
       }
     }
 
     $handles = $this->loadViewerHandles($object_phids);
 
     $request_uri = $request->getRequestURI();
 
     $limit = 100;
     $large = $request->getStr('large');
     if (count($changesets) > $limit && !$large) {
       $count = count($changesets);
       $warning = new PHUIInfoView();
       $warning->setTitle(pht('Very Large Diff'));
       $warning->setSeverity(PHUIInfoView::SEVERITY_WARNING);
       $warning->appendChild(hsprintf(
         '%s <strong>%s</strong>',
         pht(
           'This diff is very large and affects %s files. '.
           'You may load each file individually or ',
           new PhutilNumber($count)),
         phutil_tag(
           'a',
           array(
             'class' => 'button grey',
             'href' => $request_uri
               ->alter('large', 'true')
               ->setFragment('toc'),
           ),
           pht('Show All Files Inline'))));
       $warning = $warning->render();
 
       $old = array_select_keys($changesets, $old_ids);
       $new = array_select_keys($changesets, $new_ids);
 
       $query = id(new DifferentialInlineCommentQuery())
         ->setViewer($viewer)
         ->needHidden(true)
         ->withRevisionPHIDs(array($revision->getPHID()));
       $inlines = $query->execute();
       $inlines = $query->adjustInlinesForChangesets(
         $inlines,
         $old,
         $new,
         $revision);
 
       $visible_changesets = array();
       foreach ($inlines as $inline) {
         $changeset_id = $inline->getChangesetID();
         if (isset($changesets[$changeset_id])) {
           $visible_changesets[$changeset_id] = $changesets[$changeset_id];
         }
       }
     } else {
       $warning = null;
       $visible_changesets = $changesets;
     }
 
     $commit_hashes = mpull($diffs, 'getSourceControlBaseRevision');
     $local_commits = idx($props, 'local:commits', array());
     foreach ($local_commits as $local_commit) {
       $commit_hashes[] = idx($local_commit, 'tree');
       $commit_hashes[] = idx($local_commit, 'local');
     }
     $commit_hashes = array_unique(array_filter($commit_hashes));
     if ($commit_hashes) {
       $commits_for_links = id(new DiffusionCommitQuery())
         ->setViewer($viewer)
         ->withIdentifiers($commit_hashes)
         ->execute();
       $commits_for_links = mpull(
         $commits_for_links,
         null,
         'getCommitIdentifier');
     } else {
       $commits_for_links = array();
     }
 
     $revision_detail = id(new DifferentialRevisionDetailView())
       ->setUser($viewer)
       ->setRevision($revision)
       ->setDiff(end($diffs))
       ->setCustomFields($field_list)
       ->setURI($request->getRequestURI());
 
     $actions = $this->getRevisionActions($revision);
 
     $whitespace = $request->getStr(
       'whitespace',
       DifferentialChangesetParser::WHITESPACE_IGNORE_MOST);
 
     $repository = $revision->getRepository();
     if ($repository) {
       $symbol_indexes = $this->buildSymbolIndexes(
         $repository,
         $visible_changesets);
     } else {
       $symbol_indexes = array();
     }
 
     $revision_detail->setActions($actions);
     $revision_detail->setUser($viewer);
 
     $revision_detail_box = $revision_detail->render();
 
     $revision_warnings = $this->buildRevisionWarnings(
       $revision,
       $field_list,
       $warning_handle_map,
       $handles);
     if ($revision_warnings) {
       $revision_warnings = id(new PHUIInfoView())
         ->setSeverity(PHUIInfoView::SEVERITY_WARNING)
         ->setErrors($revision_warnings);
       $revision_detail_box->setInfoView($revision_warnings);
     }
 
     $detail_diffs = array_select_keys(
       $diffs,
       array($diff_vs, $target->getID()));
     $detail_diffs = mpull($detail_diffs, null, 'getPHID');
 
     $buildables = id(new HarbormasterBuildableQuery())
       ->setViewer($viewer)
       ->withBuildablePHIDs(array_keys($detail_diffs))
       ->withManualBuildables(false)
       ->needBuilds(true)
       ->needTargets(true)
       ->execute();
     $buildables = mpull($buildables, null, 'getBuildablePHID');
     foreach ($detail_diffs as $diff_phid => $detail_diff) {
       $detail_diff->attachBuildable(idx($buildables, $diff_phid));
     }
 
     $diff_detail_box = $this->buildDiffDetailView(
       $detail_diffs,
       $revision,
       $field_list);
 
     $comment_view = $this->buildTransactions(
       $revision,
       $diff_vs ? $diffs[$diff_vs] : $target,
       $target,
       $old_ids,
       $new_ids);
 
     if (!$viewer_is_anonymous) {
       $comment_view->setQuoteRef('D'.$revision->getID());
       $comment_view->setQuoteTargetID('comment-content');
     }
 
     $wrap_id = celerity_generate_unique_node_id();
     $comment_view = phutil_tag(
       'div',
       array(
         'id' => $wrap_id,
       ),
       $comment_view);
 
     $changeset_view = new DifferentialChangesetListView();
     $changeset_view->setChangesets($changesets);
     $changeset_view->setVisibleChangesets($visible_changesets);
 
     if (!$viewer_is_anonymous) {
       $changeset_view->setInlineCommentControllerURI(
         '/differential/comment/inline/edit/'.$revision->getID().'/');
     }
 
     $changeset_view->setStandaloneURI('/differential/changeset/');
     $changeset_view->setRawFileURIs(
       '/differential/changeset/?view=old',
       '/differential/changeset/?view=new');
 
     $changeset_view->setUser($viewer);
     $changeset_view->setDiff($target);
     $changeset_view->setRenderingReferences($rendering_references);
     $changeset_view->setVsMap($vs_map);
     $changeset_view->setWhitespace($whitespace);
     if ($repository) {
       $changeset_view->setRepository($repository);
     }
     $changeset_view->setSymbolIndexes($symbol_indexes);
     $changeset_view->setTitle(pht('Diff %s', $target->getID()));
 
     $diff_history = id(new DifferentialRevisionUpdateHistoryView())
       ->setUser($viewer)
       ->setDiffs($diffs)
       ->setSelectedVersusDiffID($diff_vs)
       ->setSelectedDiffID($target->getID())
       ->setSelectedWhitespace($whitespace)
       ->setCommitsForLinks($commits_for_links);
 
     $local_view = id(new DifferentialLocalCommitsView())
       ->setUser($viewer)
       ->setLocalCommits(idx($props, 'local:commits'))
       ->setCommitsForLinks($commits_for_links);
 
     if ($repository) {
       $other_revisions = $this->loadOtherRevisions(
         $changesets,
         $target,
         $repository);
     } else {
       $other_revisions = array();
     }
 
     $other_view = null;
     if ($other_revisions) {
       $other_view = $this->renderOtherRevisions($other_revisions);
     }
 
     $toc_view = $this->buildTableOfContents(
       $changesets,
       $visible_changesets,
       $target->loadCoverageMap($viewer));
 
     $comment_form = null;
     if (!$viewer_is_anonymous) {
       $draft = id(new PhabricatorDraft())->loadOneWhere(
         'authorPHID = %s AND draftKey = %s',
         $viewer->getPHID(),
         'differential-comment-'.$revision->getID());
 
       $reviewers = array();
       $ccs = array();
       if ($draft) {
         $reviewers = idx($draft->getMetadata(), 'reviewers', array());
         $ccs = idx($draft->getMetadata(), 'ccs', array());
         if ($reviewers || $ccs) {
           $handles = $this->loadViewerHandles(array_merge($reviewers, $ccs));
           $reviewers = array_select_keys($handles, $reviewers);
           $ccs = array_select_keys($handles, $ccs);
         }
       }
 
       $comment_form = new DifferentialAddCommentView();
       $comment_form->setRevision($revision);
 
       $review_warnings = array();
       foreach ($field_list->getFields() as $field) {
         $review_warnings[] = $field->getWarningsForDetailView();
       }
       $review_warnings = array_mergev($review_warnings);
 
       if ($review_warnings) {
         $review_warnings_panel = id(new PHUIInfoView())
           ->setSeverity(PHUIInfoView::SEVERITY_WARNING)
           ->setErrors($review_warnings);
         $comment_form->setInfoView($review_warnings_panel);
       }
 
       $comment_form->setActions($this->getRevisionCommentActions($revision));
       $action_uri = $this->getApplicationURI(
         'comment/save/'.$revision->getID().'/');
 
       $comment_form->setActionURI($action_uri);
       $comment_form->setUser($viewer);
       $comment_form->setDraft($draft);
       $comment_form->setReviewers(mpull($reviewers, 'getFullName', 'getPHID'));
       $comment_form->setCCs(mpull($ccs, 'getFullName', 'getPHID'));
 
       // TODO: This just makes the "Z" key work. Generalize this and remove
       // it at some point.
       $comment_form = phutil_tag(
         'div',
         array(
           'class' => 'differential-add-comment-panel',
         ),
         $comment_form);
     }
 
     $pane_id = celerity_generate_unique_node_id();
     Javelin::initBehavior(
       'differential-keyboard-navigation',
       array(
         'haunt' => $pane_id,
       ));
     Javelin::initBehavior('differential-user-select');
 
     $page_pane = id(new DifferentialPrimaryPaneView())
       ->setID($pane_id)
       ->appendChild($comment_view);
 
     $signatures = DifferentialRequiredSignaturesField::loadForRevision(
       $revision);
     $missing_signatures = false;
     foreach ($signatures as $phid => $signed) {
       if (!$signed) {
         $missing_signatures = true;
       }
     }
 
     if ($missing_signatures) {
       $signature_message = id(new PHUIInfoView())
         ->setErrors(
           array(
             array(
               phutil_tag('strong', array(), pht('Content Hidden:')),
               ' ',
               pht(
                 'The content of this revision is hidden until the author has '.
                 'signed all of the required legal agreements.'),
             ),
           ));
       $page_pane->appendChild($signature_message);
     } else {
       $page_pane->appendChild(
         array(
           $diff_history,
           $warning,
           $local_view,
           $toc_view,
           $other_view,
           $changeset_view,
         ));
     }
 
     if ($comment_form) {
       $page_pane->appendChild($comment_form);
     } else {
       // TODO: For now, just use this to get "Login to Comment".
       $page_pane->appendChild(
         id(new PhabricatorApplicationTransactionCommentView())
           ->setUser($viewer)
           ->setRequestURI($request->getRequestURI()));
     }
 
     $object_id = 'D'.$revision->getID();
 
     $operations_box = $this->buildOperationsBox($revision);
 
     $content = array(
       $operations_box,
       $revision_detail_box,
       $diff_detail_box,
       $page_pane,
     );
 
     $crumbs = $this->buildApplicationCrumbs();
     $crumbs->addTextCrumb($object_id, '/'.$object_id);
 
     $prefs = $viewer->loadPreferences();
 
     $pref_filetree = PhabricatorUserPreferences::PREFERENCE_DIFF_FILETREE;
     if ($prefs->getPreference($pref_filetree)) {
       $collapsed = $prefs->getPreference(
         PhabricatorUserPreferences::PREFERENCE_NAV_COLLAPSED,
         false);
 
       $nav = id(new DifferentialChangesetFileTreeSideNavBuilder())
         ->setTitle('D'.$revision->getID())
         ->setBaseURI(new PhutilURI('/D'.$revision->getID()))
         ->setCollapsed((bool)$collapsed)
         ->build($changesets);
       $nav->appendChild($content);
       $nav->setCrumbs($crumbs);
       $content = $nav;
     } else {
       array_unshift($content, $crumbs);
     }
 
     return $this->buildApplicationPage(
       $content,
       array(
         'title' => $object_id.' '.$revision->getTitle(),
         'pageObjects' => array($revision->getPHID()),
       ));
   }
 
   private function getRevisionActions(DifferentialRevision $revision) {
     $viewer = $this->getRequest()->getUser();
     $revision_id = $revision->getID();
     $revision_phid = $revision->getPHID();
 
     $can_edit = PhabricatorPolicyFilter::hasCapability(
       $viewer,
       $revision,
       PhabricatorPolicyCapability::CAN_EDIT);
 
     $actions = array();
 
     $actions[] = id(new PhabricatorActionView())
       ->setIcon('fa-pencil')
       ->setHref("/differential/revision/edit/{$revision_id}/")
       ->setName(pht('Edit Revision'))
       ->setDisabled(!$can_edit)
       ->setWorkflow(!$can_edit);
 
     $actions[] = id(new PhabricatorActionView())
       ->setIcon('fa-upload')
       ->setHref("/differential/revision/update/{$revision_id}/")
       ->setName(pht('Update Diff'))
       ->setDisabled(!$can_edit)
       ->setWorkflow(!$can_edit);
 
     $this->requireResource('phabricator-object-selector-css');
     $this->requireResource('javelin-behavior-phabricator-object-selector');
 
     $actions[] = id(new PhabricatorActionView())
       ->setIcon('fa-link')
       ->setName(pht('Edit Dependencies'))
       ->setHref("/search/attach/{$revision_phid}/DREV/dependencies/")
       ->setWorkflow(true)
       ->setDisabled(!$can_edit);
 
     $maniphest = 'PhabricatorManiphestApplication';
     if (PhabricatorApplication::isClassInstalled($maniphest)) {
       $actions[] = id(new PhabricatorActionView())
         ->setIcon('fa-anchor')
         ->setName(pht('Edit Maniphest Tasks'))
         ->setHref("/search/attach/{$revision_phid}/TASK/")
         ->setWorkflow(true)
         ->setDisabled(!$can_edit);
     }
 
     $request_uri = $this->getRequest()->getRequestURI();
     $actions[] = id(new PhabricatorActionView())
       ->setIcon('fa-download')
       ->setName(pht('Download Raw Diff'))
       ->setHref($request_uri->alter('download', 'true'));
 
     return $actions;
   }
 
   private function getRevisionCommentActions(DifferentialRevision $revision) {
     $actions = array(
       DifferentialAction::ACTION_COMMENT => true,
     );
 
     $viewer = $this->getRequest()->getUser();
     $viewer_phid = $viewer->getPHID();
     $viewer_is_owner = ($viewer_phid == $revision->getAuthorPHID());
     $viewer_is_reviewer = in_array($viewer_phid, $revision->getReviewers());
     $status = $revision->getStatus();
 
     $viewer_has_accepted = false;
     $viewer_has_rejected = false;
     $status_accepted = DifferentialReviewerStatus::STATUS_ACCEPTED;
     $status_rejected = DifferentialReviewerStatus::STATUS_REJECTED;
     foreach ($revision->getReviewerStatus() as $reviewer) {
       if ($reviewer->getReviewerPHID() == $viewer_phid) {
         if ($reviewer->getStatus() == $status_accepted) {
           $viewer_has_accepted = true;
         }
         if ($reviewer->getStatus() == $status_rejected) {
           $viewer_has_rejected = true;
         }
         break;
       }
     }
 
     $allow_self_accept = PhabricatorEnv::getEnvConfig(
       'differential.allow-self-accept');
     $always_allow_abandon = PhabricatorEnv::getEnvConfig(
       'differential.always-allow-abandon');
     $always_allow_close = PhabricatorEnv::getEnvConfig(
       'differential.always-allow-close');
     $allow_reopen = PhabricatorEnv::getEnvConfig(
       'differential.allow-reopen');
 
     if ($viewer_is_owner) {
       switch ($status) {
         case ArcanistDifferentialRevisionStatus::NEEDS_REVIEW:
           $actions[DifferentialAction::ACTION_ACCEPT] = $allow_self_accept;
           $actions[DifferentialAction::ACTION_ABANDON] = true;
           $actions[DifferentialAction::ACTION_RETHINK] = true;
           break;
         case ArcanistDifferentialRevisionStatus::NEEDS_REVISION:
         case ArcanistDifferentialRevisionStatus::CHANGES_PLANNED:
           $actions[DifferentialAction::ACTION_ACCEPT] = $allow_self_accept;
           $actions[DifferentialAction::ACTION_ABANDON] = true;
           $actions[DifferentialAction::ACTION_REQUEST] = true;
           break;
         case ArcanistDifferentialRevisionStatus::ACCEPTED:
           $actions[DifferentialAction::ACTION_ABANDON] = true;
           $actions[DifferentialAction::ACTION_REQUEST] = true;
           $actions[DifferentialAction::ACTION_RETHINK] = true;
           $actions[DifferentialAction::ACTION_CLOSE] = true;
           break;
         case ArcanistDifferentialRevisionStatus::CLOSED:
           break;
         case ArcanistDifferentialRevisionStatus::ABANDONED:
           $actions[DifferentialAction::ACTION_RECLAIM] = true;
           break;
       }
     } else {
       switch ($status) {
         case ArcanistDifferentialRevisionStatus::NEEDS_REVIEW:
           $actions[DifferentialAction::ACTION_ABANDON] = $always_allow_abandon;
           $actions[DifferentialAction::ACTION_ACCEPT] = true;
           $actions[DifferentialAction::ACTION_REJECT] = true;
           $actions[DifferentialAction::ACTION_RESIGN] = $viewer_is_reviewer;
           break;
         case ArcanistDifferentialRevisionStatus::NEEDS_REVISION:
         case ArcanistDifferentialRevisionStatus::CHANGES_PLANNED:
           $actions[DifferentialAction::ACTION_ABANDON] = $always_allow_abandon;
           $actions[DifferentialAction::ACTION_ACCEPT] = true;
           $actions[DifferentialAction::ACTION_REJECT] = !$viewer_has_rejected;
           $actions[DifferentialAction::ACTION_RESIGN] = $viewer_is_reviewer;
           break;
         case ArcanistDifferentialRevisionStatus::ACCEPTED:
           $actions[DifferentialAction::ACTION_ABANDON] = $always_allow_abandon;
           $actions[DifferentialAction::ACTION_ACCEPT] = !$viewer_has_accepted;
           $actions[DifferentialAction::ACTION_REJECT] = true;
           $actions[DifferentialAction::ACTION_RESIGN] = $viewer_is_reviewer;
           break;
         case ArcanistDifferentialRevisionStatus::CLOSED:
         case ArcanistDifferentialRevisionStatus::ABANDONED:
           break;
       }
       if ($status != ArcanistDifferentialRevisionStatus::CLOSED) {
         $actions[DifferentialAction::ACTION_CLAIM] = true;
         $actions[DifferentialAction::ACTION_CLOSE] = $always_allow_close;
       }
     }
 
     $actions[DifferentialAction::ACTION_ADDREVIEWERS] = true;
     $actions[DifferentialAction::ACTION_ADDCCS] = true;
     $actions[DifferentialAction::ACTION_REOPEN] = $allow_reopen &&
       ($status == ArcanistDifferentialRevisionStatus::CLOSED);
 
     $actions = array_keys(array_filter($actions));
     $actions_dict = array();
     foreach ($actions as $action) {
       $actions_dict[$action] = DifferentialAction::getActionVerb($action);
     }
 
     return $actions_dict;
   }
 
   private function loadChangesetsAndVsMap(
     DifferentialDiff $target,
     DifferentialDiff $diff_vs = null,
     PhabricatorRepository $repository = null) {
 
     $load_diffs = array($target);
     if ($diff_vs) {
       $load_diffs[] = $diff_vs;
     }
 
     $raw_changesets = id(new DifferentialChangesetQuery())
       ->setViewer($this->getRequest()->getUser())
       ->withDiffs($load_diffs)
       ->execute();
     $changeset_groups = mgroup($raw_changesets, 'getDiffID');
 
     $changesets = idx($changeset_groups, $target->getID(), array());
     $changesets = mpull($changesets, null, 'getID');
 
     $refs          = array();
     $vs_map        = array();
     $vs_changesets = array();
     if ($diff_vs) {
       $vs_id                  = $diff_vs->getID();
       $vs_changesets_path_map = array();
       foreach (idx($changeset_groups, $vs_id, array()) as $changeset) {
         $path = $changeset->getAbsoluteRepositoryPath($repository, $diff_vs);
         $vs_changesets_path_map[$path] = $changeset;
         $vs_changesets[$changeset->getID()] = $changeset;
       }
       foreach ($changesets as $key => $changeset) {
         $path = $changeset->getAbsoluteRepositoryPath($repository, $target);
         if (isset($vs_changesets_path_map[$path])) {
           $vs_map[$changeset->getID()] =
             $vs_changesets_path_map[$path]->getID();
           $refs[$changeset->getID()] =
             $changeset->getID().'/'.$vs_changesets_path_map[$path]->getID();
           unset($vs_changesets_path_map[$path]);
         } else {
           $refs[$changeset->getID()] = $changeset->getID();
         }
       }
       foreach ($vs_changesets_path_map as $path => $changeset) {
         $changesets[$changeset->getID()] = $changeset;
         $vs_map[$changeset->getID()]     = -1;
         $refs[$changeset->getID()]       = $changeset->getID().'/-1';
       }
     } else {
       foreach ($changesets as $changeset) {
         $refs[$changeset->getID()] = $changeset->getID();
       }
     }
 
     $changesets = msort($changesets, 'getSortKey');
 
     return array($changesets, $vs_map, $vs_changesets, $refs);
   }
 
   private function buildSymbolIndexes(
     PhabricatorRepository $repository,
     array $visible_changesets) {
     assert_instances_of($visible_changesets, 'DifferentialChangeset');
 
     $engine = PhabricatorSyntaxHighlighter::newEngine();
 
     $langs = $repository->getSymbolLanguages();
     $langs = nonempty($langs, array());
 
     $sources = $repository->getSymbolSources();
     $sources = nonempty($sources, array());
 
     $symbol_indexes = array();
 
     if ($langs && $sources) {
       $have_symbols = id(new DiffusionSymbolQuery())
           ->existsSymbolsInRepository($repository->getPHID());
       if (!$have_symbols) {
         return $symbol_indexes;
       }
     }
 
     $repository_phids = array_merge(
       array($repository->getPHID()),
       $sources);
 
     $indexed_langs = array_fill_keys($langs, true);
     foreach ($visible_changesets as $key => $changeset) {
       $lang = $engine->getLanguageFromFilename($changeset->getFilename());
       if (empty($indexed_langs) || isset($indexed_langs[$lang])) {
         $symbol_indexes[$key] = array(
           'lang'         => $lang,
           'repositories' => $repository_phids,
         );
       }
     }
 
     return $symbol_indexes;
   }
 
   private function loadOtherRevisions(
     array $changesets,
     DifferentialDiff $target,
     PhabricatorRepository $repository) {
     assert_instances_of($changesets, 'DifferentialChangeset');
 
     $paths = array();
     foreach ($changesets as $changeset) {
       $paths[] = $changeset->getAbsoluteRepositoryPath(
         $repository,
         $target);
     }
 
     if (!$paths) {
       return array();
     }
 
     $path_map = id(new DiffusionPathIDQuery($paths))->loadPathIDs();
 
     if (!$path_map) {
       return array();
     }
 
     $recent = (PhabricatorTime::getNow() - phutil_units('30 days in seconds'));
 
     $query = id(new DifferentialRevisionQuery())
       ->setViewer($this->getRequest()->getUser())
       ->withStatus(DifferentialRevisionQuery::STATUS_OPEN)
       ->withUpdatedEpochBetween($recent, null)
       ->setOrder(DifferentialRevisionQuery::ORDER_MODIFIED)
       ->setLimit(10)
       ->needFlags(true)
       ->needDrafts(true)
       ->needRelationships(true);
 
     foreach ($path_map as $path => $path_id) {
       $query->withPath($repository->getID(), $path_id);
     }
 
     $results = $query->execute();
 
     // Strip out *this* revision.
     foreach ($results as $key => $result) {
       if ($result->getID() == $this->revisionID) {
         unset($results[$key]);
       }
     }
 
     return $results;
   }
 
   private function renderOtherRevisions(array $revisions) {
     assert_instances_of($revisions, 'DifferentialRevision');
     $viewer = $this->getViewer();
 
     $header = id(new PHUIHeaderView())
       ->setHeader(pht('Recent Similar Open Revisions'));
 
     $view = id(new DifferentialRevisionListView())
       ->setHeader($header)
       ->setRevisions($revisions)
       ->setUser($viewer);
 
     $phids = $view->getRequiredHandlePHIDs();
     $handles = $this->loadViewerHandles($phids);
     $view->setHandles($handles);
 
     return $view;
   }
 
 
   /**
    * Note this code is somewhat similar to the buildPatch method in
    * @{class:DifferentialReviewRequestMail}.
    *
    * @return @{class:AphrontRedirectResponse}
    */
   private function buildRawDiffResponse(
     DifferentialRevision $revision,
     array $changesets,
     array $vs_changesets,
     array $vs_map,
     PhabricatorRepository $repository = null) {
 
     assert_instances_of($changesets,    'DifferentialChangeset');
     assert_instances_of($vs_changesets, 'DifferentialChangeset');
 
     $viewer = $this->getRequest()->getUser();
 
     id(new DifferentialHunkQuery())
       ->setViewer($viewer)
       ->withChangesets($changesets)
       ->needAttachToChangesets(true)
       ->execute();
 
     $diff = new DifferentialDiff();
     $diff->attachChangesets($changesets);
     $raw_changes = $diff->buildChangesList();
     $changes = array();
     foreach ($raw_changes as $changedict) {
       $changes[] = ArcanistDiffChange::newFromDictionary($changedict);
     }
 
     $loader = id(new PhabricatorFileBundleLoader())
       ->setViewer($viewer);
 
     $bundle = ArcanistBundle::newFromChanges($changes);
     $bundle->setLoadFileDataCallback(array($loader, 'loadFileData'));
 
     $vcs = $repository ? $repository->getVersionControlSystem() : null;
     switch ($vcs) {
       case PhabricatorRepositoryType::REPOSITORY_TYPE_GIT:
       case PhabricatorRepositoryType::REPOSITORY_TYPE_MERCURIAL:
         $raw_diff = $bundle->toGitPatch();
         break;
       case PhabricatorRepositoryType::REPOSITORY_TYPE_SVN:
       default:
         $raw_diff = $bundle->toUnifiedDiff();
         break;
     }
 
     $request_uri = $this->getRequest()->getRequestURI();
 
     // this ends up being something like
     //   D123.diff
     // or the verbose
     //   D123.vs123.id123.whitespaceignore-all.diff
     // lame but nice to include these options
     $file_name = ltrim($request_uri->getPath(), '/').'.';
     foreach ($request_uri->getQueryParams() as $key => $value) {
       if ($key == 'download') {
         continue;
       }
       $file_name .= $key.$value.'.';
     }
     $file_name .= 'diff';
 
     $file = PhabricatorFile::buildFromFileDataOrHash(
       $raw_diff,
       array(
         'name' => $file_name,
         'ttl' => (60 * 60 * 24),
         'viewPolicy' => PhabricatorPolicies::POLICY_NOONE,
       ));
 
     $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
       $file->attachToObject($revision->getPHID());
     unset($unguarded);
 
     return $file->getRedirectResponse();
   }
 
   private function buildTransactions(
     DifferentialRevision $revision,
     DifferentialDiff $left_diff,
     DifferentialDiff $right_diff,
     array $old_ids,
     array $new_ids) {
 
     $timeline = $this->buildTransactionTimeline(
       $revision,
       new DifferentialTransactionQuery(),
       $engine = null,
       array(
         'left' => $left_diff->getID(),
         'right' => $right_diff->getID(),
         'old' => implode(',', $old_ids),
         'new' => implode(',', $new_ids),
       ));
 
     return $timeline;
   }
 
   private function buildRevisionWarnings(
     DifferentialRevision $revision,
     PhabricatorCustomFieldList $field_list,
     array $warning_handle_map,
     array $handles) {
 
     $warnings = array();
     foreach ($field_list->getFields() as $key => $field) {
       $phids = idx($warning_handle_map, $key, array());
       $field_handles = array_select_keys($handles, $phids);
       $field_warnings = $field->getWarningsForRevisionHeader($field_handles);
       foreach ($field_warnings as $warning) {
         $warnings[] = $warning;
       }
     }
 
     return $warnings;
   }
 
   private function buildDiffDetailView(
     array $diffs,
     DifferentialRevision $revision,
     PhabricatorCustomFieldList $field_list) {
     $viewer = $this->getViewer();
 
     $fields = array();
     foreach ($field_list->getFields() as $field) {
       if ($field->shouldAppearInDiffPropertyView()) {
         $fields[] = $field;
       }
     }
 
     if (!$fields) {
       return null;
     }
 
     // Make sure we're only going to render unique diffs.
     $diffs = mpull($diffs, null, 'getID');
     $labels = array(pht('Left'), pht('Right'));
 
     $property_lists = array();
     foreach ($diffs as $diff) {
       if (count($diffs) == 2) {
         $label = array_shift($labels);
         $label = pht('%s (Diff %d)', $label, $diff->getID());
       } else {
         $label = pht('Diff %d', $diff->getID());
       }
 
       $property_lists[] = array(
         $label,
         $this->buildDiffPropertyList($diff, $revision, $fields),
       );
     }
 
     $box = id(new PHUIObjectBoxView())
       ->setHeaderText(pht('Diff Detail'))
       ->setUser($viewer);
 
     $last_tab = null;
     foreach ($property_lists as $key => $property_list) {
       list($tab_name, $list_view) = $property_list;
 
       $tab = id(new PHUIListItemView())
         ->setKey($key)
         ->setName($tab_name);
 
       $box->addPropertyList($list_view, $tab);
       $last_tab = $tab;
     }
 
     if ($last_tab) {
       $last_tab->setSelected(true);
     }
 
     return $box;
   }
 
   private function buildDiffPropertyList(
     DifferentialDiff $diff,
     DifferentialRevision $revision,
     array $fields) {
     $viewer = $this->getViewer();
 
     $view = id(new PHUIPropertyListView())
       ->setUser($viewer)
       ->setObject($diff);
 
     foreach ($fields as $field) {
       $label = $field->renderDiffPropertyViewLabel($diff);
       $value = $field->renderDiffPropertyViewValue($diff);
       if ($value !== null) {
         $view->addProperty($label, $value);
       }
     }
 
     return $view;
   }
 
   private function buildOperationsBox(DifferentialRevision $revision) {
     $viewer = $this->getViewer();
 
     // Save a query if we can't possibly have pending operations.
     $repository = $revision->getRepository();
     if (!$repository || !$repository->canPerformAutomation()) {
       return null;
     }
 
     $operations = id(new DrydockRepositoryOperationQuery())
       ->setViewer($viewer)
       ->withObjectPHIDs(array($revision->getPHID()))
+      ->withOperationTypes(
+        array(
+          DrydockLandRepositoryOperation::OPCONST,
+        ))
       ->withOperationStates(
         array(
           DrydockRepositoryOperation::STATE_WAIT,
           DrydockRepositoryOperation::STATE_WORK,
           DrydockRepositoryOperation::STATE_FAIL,
         ))
       ->execute();
     if (!$operations) {
       return null;
     }
 
-    $operation = head(msort($operations, 'getID'));
+    $state_fail = DrydockRepositoryOperation::STATE_FAIL;
+
+    // We're going to show the oldest operation which hasn't failed, or the
+    // most recent failure if they're all failures.
+    $operations = msort($operations, 'getID');
+    foreach ($operations as $operation) {
+      if ($operation->getOperationState() != $state_fail) {
+        break;
+      }
+    }
 
     $box_view = id(new PHUIObjectBoxView())
       ->setHeaderText(pht('Active Operations'));
 
     return id(new DrydockRepositoryOperationStatusView())
       ->setUser($viewer)
       ->setBoxView($box_view)
       ->setOperation($operation);
   }
 
 }
diff --git a/src/applications/drydock/query/DrydockRepositoryOperationQuery.php b/src/applications/drydock/query/DrydockRepositoryOperationQuery.php
index b72e654603..38e1b4787b 100644
--- a/src/applications/drydock/query/DrydockRepositoryOperationQuery.php
+++ b/src/applications/drydock/query/DrydockRepositoryOperationQuery.php
@@ -1,145 +1,158 @@
 <?php
 
 final class DrydockRepositoryOperationQuery extends DrydockQuery {
 
   private $ids;
   private $phids;
   private $objectPHIDs;
   private $repositoryPHIDs;
   private $operationStates;
+  private $operationTypes;
 
   public function withIDs(array $ids) {
     $this->ids = $ids;
     return $this;
   }
 
   public function withPHIDs(array $phids) {
     $this->phids = $phids;
     return $this;
   }
 
   public function withObjectPHIDs(array $object_phids) {
     $this->objectPHIDs = $object_phids;
     return $this;
   }
 
   public function withRepositoryPHIDs(array $repository_phids) {
     $this->repositoryPHIDs = $repository_phids;
     return $this;
   }
 
   public function withOperationStates(array $states) {
     $this->operationStates = $states;
     return $this;
   }
 
+  public function withOperationTypes(array $types) {
+    $this->operationTypes = $types;
+    return $this;
+  }
+
   public function newResultObject() {
     return new DrydockRepositoryOperation();
   }
 
   protected function loadPage() {
     return $this->loadStandardPage($this->newResultObject());
   }
 
   protected function willFilterPage(array $operations) {
     $implementations = DrydockRepositoryOperationType::getAllOperationTypes();
 
     foreach ($operations as $key => $operation) {
       $impl = idx($implementations, $operation->getOperationType());
       if (!$impl) {
         $this->didRejectResult($operation);
         unset($operations[$key]);
         continue;
       }
       $impl = clone $impl;
       $operation->attachImplementation($impl);
     }
 
     $repository_phids = mpull($operations, 'getRepositoryPHID');
     if ($repository_phids) {
       $repositories = id(new PhabricatorRepositoryQuery())
         ->setViewer($this->getViewer())
         ->setParentQuery($this)
         ->withPHIDs($repository_phids)
         ->execute();
       $repositories = mpull($repositories, null, 'getPHID');
     } else {
       $repositories = array();
     }
 
     foreach ($operations as $key => $operation) {
       $repository = idx($repositories, $operation->getRepositoryPHID());
       if (!$repository) {
         $this->didRejectResult($operation);
         unset($operations[$key]);
         continue;
       }
       $operation->attachRepository($repository);
     }
 
     return $operations;
   }
 
   protected function didFilterPage(array $operations) {
     $object_phids = mpull($operations, 'getObjectPHID');
     if ($object_phids) {
       $objects = id(new PhabricatorObjectQuery())
         ->setViewer($this->getViewer())
         ->setParentQuery($this)
         ->withPHIDs($object_phids)
         ->execute();
       $objects = mpull($objects, null, 'getPHID');
     } else {
       $objects = array();
     }
 
     foreach ($operations as $key => $operation) {
       $object = idx($objects, $operation->getObjectPHID());
       $operation->attachObject($object);
     }
 
     return $operations;
   }
 
   protected function buildWhereClauseParts(AphrontDatabaseConnection $conn) {
     $where = parent::buildWhereClauseParts($conn);
 
     if ($this->ids !== null) {
       $where[] = qsprintf(
         $conn,
         'id IN (%Ld)',
         $this->ids);
     }
 
     if ($this->phids !== null) {
       $where[] = qsprintf(
         $conn,
         'phid IN (%Ls)',
         $this->phids);
     }
 
     if ($this->objectPHIDs !== null) {
       $where[] = qsprintf(
         $conn,
         'objectPHID IN (%Ls)',
         $this->objectPHIDs);
     }
 
     if ($this->repositoryPHIDs !== null) {
       $where[] = qsprintf(
         $conn,
         'repositoryPHID IN (%Ls)',
         $this->repositoryPHIDs);
     }
 
     if ($this->operationStates !== null) {
       $where[] = qsprintf(
         $conn,
         'operationState IN (%Ls)',
         $this->operationStates);
     }
 
+    if ($this->operationTypes !== null) {
+      $where[] = qsprintf(
+        $conn,
+        'operationType IN (%Ls)',
+        $this->operationTypes);
+    }
+
     return $where;
   }
 
 }
diff --git a/src/applications/drydock/storage/DrydockRepositoryOperation.php b/src/applications/drydock/storage/DrydockRepositoryOperation.php
index 6ee86bf5bb..32e6ded9f3 100644
--- a/src/applications/drydock/storage/DrydockRepositoryOperation.php
+++ b/src/applications/drydock/storage/DrydockRepositoryOperation.php
@@ -1,191 +1,195 @@
 <?php
 
 /**
  * Represents a request to perform a repository operation like a merge or
  * cherry-pick.
  */
 final class DrydockRepositoryOperation extends DrydockDAO
   implements
     PhabricatorPolicyInterface {
 
   const STATE_WAIT = 'wait';
   const STATE_WORK = 'work';
   const STATE_DONE = 'done';
   const STATE_FAIL = 'fail';
 
   protected $authorPHID;
   protected $objectPHID;
   protected $repositoryPHID;
   protected $repositoryTarget;
   protected $operationType;
   protected $operationState;
   protected $properties = array();
 
   private $repository = self::ATTACHABLE;
   private $object = self::ATTACHABLE;
   private $implementation = self::ATTACHABLE;
 
   public static function initializeNewOperation(
     DrydockRepositoryOperationType $op) {
 
     return id(new DrydockRepositoryOperation())
       ->setOperationState(self::STATE_WAIT)
       ->setOperationType($op->getOperationConstant());
   }
 
   protected function getConfiguration() {
     return array(
       self::CONFIG_AUX_PHID => true,
       self::CONFIG_SERIALIZATION => array(
         'properties' => self::SERIALIZATION_JSON,
       ),
       self::CONFIG_COLUMN_SCHEMA => array(
         'repositoryTarget' => 'bytes',
         'operationType' => 'text32',
         'operationState' => 'text32',
       ),
       self::CONFIG_KEY_SCHEMA => array(
         'key_object' => array(
           'columns' => array('objectPHID'),
         ),
         'key_repository' => array(
           'columns' => array('repositoryPHID', 'operationState'),
         ),
       ),
     ) + parent::getConfiguration();
   }
 
   public function generatePHID() {
     return PhabricatorPHID::generateNewPHID(
       DrydockRepositoryOperationPHIDType::TYPECONST);
   }
 
   public function attachRepository(PhabricatorRepository $repository) {
     $this->repository = $repository;
     return $this;
   }
 
   public function getRepository() {
     return $this->assertAttached($this->repository);
   }
 
   public function attachObject($object) {
     $this->object = $object;
     return $this;
   }
 
   public function getObject() {
     return $this->assertAttached($this->object);
   }
 
   public function attachImplementation(DrydockRepositoryOperationType $impl) {
     $this->implementation = $impl;
     return $this;
   }
 
   public function getImplementation() {
     return $this->implementation;
   }
 
   public function getProperty($key, $default = null) {
     return idx($this->properties, $key, $default);
   }
 
   public function setProperty($key, $value) {
     $this->properties[$key] = $value;
     return $this;
   }
 
   public static function getOperationStateIcon($state) {
     $map = array(
       self::STATE_WAIT => 'fa-clock-o',
       self::STATE_WORK => 'fa-refresh blue',
       self::STATE_DONE => 'fa-check green',
       self::STATE_FAIL => 'fa-times red',
     );
 
     return idx($map, $state, null);
   }
 
   public static function getOperationStateName($state) {
     $map = array(
       self::STATE_WAIT => pht('Waiting'),
       self::STATE_WORK => pht('Working'),
       self::STATE_DONE => pht('Done'),
       self::STATE_FAIL => pht('Failed'),
     );
 
     return idx($map, $state, pht('<Unknown: %s>', $state));
   }
 
   public function scheduleUpdate() {
     PhabricatorWorker::scheduleTask(
       'DrydockRepositoryOperationUpdateWorker',
       array(
         'operationPHID' => $this->getPHID(),
       ),
       array(
         'objectPHID' => $this->getPHID(),
         'priority' => PhabricatorWorker::PRIORITY_ALERTS,
       ));
   }
 
   public function applyOperation(DrydockInterface $interface) {
     return $this->getImplementation()->applyOperation(
       $this,
       $interface);
   }
 
   public function getOperationDescription(PhabricatorUser $viewer) {
     return $this->getImplementation()->getOperationDescription(
       $this,
       $viewer);
   }
 
   public function getOperationCurrentStatus(PhabricatorUser $viewer) {
     return $this->getImplementation()->getOperationCurrentStatus(
       $this,
       $viewer);
   }
 
   public function isUnderway() {
     switch ($this->getOperationState()) {
       case self::STATE_WAIT:
       case self::STATE_WORK:
         return true;
     }
 
     return false;
   }
 
+  public function isDone() {
+    return ($this->getOperationState() === self::STATE_DONE);
+  }
+
   public function getWorkingCopyMerges() {
     return $this->getImplementation()->getWorkingCopyMerges(
       $this);
   }
 
 
 /* -(  PhabricatorPolicyInterface  )----------------------------------------- */
 
 
   public function getCapabilities() {
     return array(
       PhabricatorPolicyCapability::CAN_VIEW,
       PhabricatorPolicyCapability::CAN_EDIT,
     );
   }
 
   public function getPolicy($capability) {
     return $this->getRepository()->getPolicy($capability);
   }
 
   public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
     return $this->getRepository()->hasAutomaticCapability($capability, $viewer);
   }
 
   public function describeAutomaticCapability($capability) {
     return pht(
       'A repository operation inherits the policies of the repository it '.
       'affects.');
   }
 
 }