diff --git a/src/applications/project/controller/PhabricatorProjectMoveController.php b/src/applications/project/controller/PhabricatorProjectMoveController.php
--- a/src/applications/project/controller/PhabricatorProjectMoveController.php
+++ b/src/applications/project/controller/PhabricatorProjectMoveController.php
@@ -145,7 +145,21 @@
             'newSubpriorityBase' => $before_sub,
             'direction' => '<'));
       }
-   }
+    }
+
+    $event = new PhabricatorEvent(
+      PhabricatorEventType::TYPE_MANIPHEST_WILLEDITTASK,
+      array(
+        'task'          => $object,
+        'new'           => false,
+        'transactions'  => $xactions,
+      ));
+    $event->setUser($viewer);
+    $event->setAphrontRequest($request);
+    PhutilEventEngine::dispatchEvent($event);
+
+    $object = $event->getValue('task');
+    $xactions = $event->getValue('transactions');
 
     $editor = id(new ManiphestTransactionEditor())
       ->setActor($viewer)
@@ -155,6 +169,17 @@
 
     $editor->applyTransactions($object, $xactions);
 
+    $event = new PhabricatorEvent(
+      PhabricatorEventType::TYPE_MANIPHEST_DIDEDITTASK,
+      array(
+        'task'          => $object,
+        'new'           => false,
+        'transactions'  => $xactions,
+      ));
+    $event->setUser($viewer);
+    $event->setAphrontRequest($request);
+    PhutilEventEngine::dispatchEvent($event);
+
     $owner = null;
     if ($object->getOwnerPHID()) {
       $owner = id(new PhabricatorHandleQuery())