Maniphest - make custom fields always render last

Summary: Fixes T6029. We should append custom fields last so they show up after things like projects, tokens, etc that render via UI events.

Test Plan: viewed a task with custom fields and projects was last

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T6029

Differential Revision: https://secure.phabricator.com/D10407

src/applications/maniphest/controller/ManiphestTaskDetailController.php

@@ -606,13 +606,13 @@ final class ManiphestTaskDetailController extends ManiphestController {
         $file_view->render());
     }
 
+    $view->invokeWillRenderEvent();
+
     $field_list->appendFieldsToPropertyList(
       $task,
       $viewer,
       $view);
 
-    $view->invokeWillRenderEvent();
-
     return $view;
   }