AFNetworking/AFOAuth1Client — pull request #41 by falkobuttler (2013-05-01 07:13:24+00:00)
Title: Added error handling when return query string doesn't contain oauth parameters

Added error handling when return query string doesn't contain oauth parameters

This lead to a crash/assert before. This situation might occur if you quickly register/unregister with a service. In my case the query string contained "Invalid verifier" and no other parameters.