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/Issue.php

@@ -159,7 +159,10 @@ class IDF_Issue extends Pluf_Model
 
     function postSave($create=false)
     {
-        IDF_Search::index($this);
+        // Note: No indexing is performed here. The indexing is
+        // triggered in the postSave step of the comment to ensure
+        // that the issue as at least one comment in the database when
+        // doing the indexing.
         if ($create) {
             IDF_Timeline::insert($this, $this->get_project(), 
                                  $this->get_submitter());

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)