RestKit/RestKit — pull request #982 by jcoleman (2012-10-05 15:15:21+00:00)
Title: Handle empty object with client error as failure

Fixes #978.

If we receive a response which isn't empty, but the response object (e.g. JSON `{}`) has no content then a client error status code should be reported as an error rather than being handled with the success callback queue as if there was no error.