From 98a14e9a6a1d0f748ca3f83981aa2a590c58c2f6 Mon Sep 17 00:00:00 2001
From: lilia <liliakai@gmail.com>
Date: Sun, 2 Aug 2015 10:10:43 -0700
Subject: [PATCH] Fix bug in message model

conversation.changedAttributes returns false when there are no changes.
---
 js/models/messages.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/js/models/messages.js b/js/models/messages.js
index c0bac917885..6cd1fb29d4f 100644
--- a/js/models/messages.js
+++ b/js/models/messages.js
@@ -154,7 +154,7 @@
                             avatar     : dataMessage.group.avatar,
                             members    : dataMessage.group.members,
                         };
-                        group_update = conversation.changedAttributes(_.pick(dataMessage.group, 'name', 'avatar'));
+                        group_update = conversation.changedAttributes(_.pick(dataMessage.group, 'name', 'avatar')) || {};
                         var difference = _.difference(dataMessage.group.members, conversation.get('members'));
                         if (difference.length > 0) {
                             group_update.joined = difference;