urbanairship/ios-library — pull request #43 by MarcST (2013-09-06 13:27:30+00:00)
Title: Fixing notify observers bug stemming from mutable set enumeration

This fix handles the scenario when a view controller has been added as an observer to [UAInbox shared].messageList and a rich push notification is launching the app. Without this change, I was running into a "Collection <_NSSetM: ...> was mutated while being enumerated" exception in within this exact method call.