Fixes T2523 - Comments are being displayed in feed.

Summary:
currently, only comments per se are being displayed. cut after 128 characters (which is the default), means in theory up to 128 newlines ^^

when you for example claim a task with a comment, close it with a comment, or do anything else, it won't be displayed

Test Plan: {F33890}

Reviewers: epriestley, btrahan, hwinkel

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T2523

Differential Revision: https://secure.phabricator.com/D5119

src/applications/feed/story/PhabricatorFeedStoryManiphest.php

@@ -26,6 +26,7 @@ final class PhabricatorFeedStoryManiphest
     $action = $data->getValue('action');
     switch ($action) {
       case ManiphestAction::ACTION_CREATE:
+      case ManiphestAction::ACTION_COMMENT:
         $full_size = true;
         break;
       default:
@@ -35,7 +36,20 @@ final class PhabricatorFeedStoryManiphest
 
     if ($full_size) {
       $view->setImage($this->getHandle($data->getAuthorPHID())->getImageURI());
+
+      switch ($action) {
+        case ManiphestAction::ACTION_COMMENT:
+          // I'm just fetching the comments here
+          // Don't repeat this at home!
+          $comments = $data->getValue('comments');
+          $content = $this->renderSummary($comments);
+          break;
+        default:
+          // I think this is just for create
           $content = $this->renderSummary($data->getValue('description'));
+          break;
+      }
+
       $view->appendChild($content);
     } else {
       $view->setOneLineStory(true);