diff --git a/src/applications/subscriptions/controller/PhabricatorSubscriptionsEditController.php b/src/applications/subscriptions/controller/PhabricatorSubscriptionsEditController.php
index acc8f5ebe9..4519a1c902 100644
--- a/src/applications/subscriptions/controller/PhabricatorSubscriptionsEditController.php
+++ b/src/applications/subscriptions/controller/PhabricatorSubscriptionsEditController.php
@@ -1,139 +1,140 @@
 <?php
 
 final class PhabricatorSubscriptionsEditController
   extends PhabricatorController {
 
   private $phid;
   private $action;
 
   public function willProcessRequest(array $data) {
     $this->phid = idx($data, 'phid');
     $this->action = idx($data, 'action');
   }
 
   public function processRequest() {
     $request = $this->getRequest();
 
     if (!$request->isFormPost()) {
       return new Aphront400Response();
     }
 
     switch ($this->action) {
       case 'add':
         $is_add = true;
         break;
       case 'delete':
         $is_add = false;
         break;
       default:
         return new Aphront400Response();
     }
 
     $user = $request->getUser();
     $phid = $this->phid;
 
     $handle = id(new PhabricatorHandleQuery())
       ->setViewer($user)
       ->withPHIDs(array($phid))
       ->executeOne();
 
     if (phid_get_type($phid) == PhabricatorProjectProjectPHIDType::TYPECONST) {
       // TODO: This is a big hack, but a weak argument for adding some kind
       // of "load for role" feature to ObjectQuery, and also not a really great
       // argument for adding some kind of "load extra stuff" feature to
       // SubscriberInterface. Do this for now and wait for the best way forward
       // to become more clear?
 
       $object = id(new PhabricatorProjectQuery())
         ->setViewer($user)
         ->withPHIDs(array($phid))
         ->needWatchers(true)
         ->executeOne();
     } else {
       $object = id(new PhabricatorObjectQuery())
         ->setViewer($user)
         ->withPHIDs(array($phid))
         ->executeOne();
     }
 
     if (!($object instanceof PhabricatorSubscribableInterface)) {
       return $this->buildErrorResponse(
         pht('Bad Object'),
         pht('This object is not subscribable.'),
         $handle->getURI());
     }
 
     if ($object->isAutomaticallySubscribed($user->getPHID())) {
       return $this->buildErrorResponse(
         pht('Automatically Subscribed'),
         pht('You are automatically subscribed to this object.'),
         $handle->getURI());
     }
 
     if (!$object->shouldAllowSubscription($user->getPHID())) {
       return $this->buildErrorResponse(
         pht('You Can Not Subscribe'),
         pht('You can not subscribe to this object.'),
         $handle->getURI());
     }
 
     if ($object instanceof PhabricatorApplicationTransactionInterface) {
       if ($is_add) {
         $xaction_value = array(
           '+' => array($user->getPHID()),
         );
       } else {
         $xaction_value = array(
           '-' => array($user->getPHID()),
         );
       }
 
       $xaction = id($object->getApplicationTransactionTemplate())
         ->setTransactionType(PhabricatorTransactions::TYPE_SUBSCRIBERS)
         ->setNewValue($xaction_value);
 
       $editor = id($object->getApplicationTransactionEditor())
         ->setActor($user)
         ->setContinueOnNoEffect(true)
+        ->setContinueOnMissingFields(true)
         ->setContentSourceFromRequest($request);
 
       $editor->applyTransactions(
         $object->getApplicationTransactionObject(),
         array($xaction));
     } else {
 
       // TODO: Eventually, get rid of this once everything implements
       // PhabriatorApplicationTransactionInterface.
 
       $editor = id(new PhabricatorSubscriptionsEditor())
         ->setActor($user)
         ->setObject($object);
 
       if ($is_add) {
         $editor->subscribeExplicit(array($user->getPHID()), $explicit = true);
       } else {
         $editor->unsubscribe(array($user->getPHID()));
       }
 
       $editor->save();
     }
 
     // TODO: We should just render the "Unsubscribe" action and swap it out
     // in the document for Ajax requests.
     return id(new AphrontReloadResponse())->setURI($handle->getURI());
   }
 
   private function buildErrorResponse($title, $message, $uri) {
     $request = $this->getRequest();
     $user = $request->getUser();
 
     $dialog = id(new AphrontDialogView())
       ->setUser($user)
       ->setTitle($title)
       ->appendChild($message)
       ->addCancelButton($uri);
 
     return id(new AphrontDialogResponse())->setDialog($dialog);
   }
 
 }