Fixed the indexing for the issues.

It was not indexing the content correctly when creating the issue as the
content of the issue was not yet stored in the database.

src/IDF/IssueComment.php

@@ -123,6 +123,7 @@ class IDF_IssueComment extends Pluf_Model
                                      $this->get_submitter());
             }
         }
+        IDF_Search::index($this->get_issue());
     }
 
     public function timelineFragment($request)