Re-start the session.

We closed the session before listing events to allow parallel requests, but we only restarted it if there was no error condition. Since notifications write the session, we must restart the session in the error case too though.

kronolith/lib/Ajax/Application/Handler.php

@@ -122,6 +122,7 @@ public function listEvents()
                 $result->events = $events;
             }
         } catch (Exception $e) {
+            $session->start();
             $GLOBALS['notification']->push($e, 'horde.error');
         }
         return $result;