From f726df9748151907fb93f8b915f293984637e9cc Mon Sep 17 00:00:00 2001
From: Evan Prodromou <evan@status.net>
Date: Wed, 20 Jul 2011 11:39:51 -0400
Subject: [PATCH] check explicitly for ActivityObject in microappplugin

---
 lib/microappplugin.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/microappplugin.php b/lib/microappplugin.php
index 1c886d5a69..542e973ddc 100644
--- a/lib/microappplugin.php
+++ b/lib/microappplugin.php
@@ -193,6 +193,7 @@ abstract class MicroAppPlugin extends Plugin
     function isMyActivity($activity) {
         $types = $this->types();
         return (count($activity->objects) == 1 &&
+                ($activity->objects[0] instanceof ActivityObject) &&
                 in_array($activity->objects[0]->type, $types));
     }