django/django — pull request #1809 by jellonek (2013-10-25 11:43:42+00:00)
Title: Check res for possible None value.

_translation can in some situations return None, and code introduced in
https://github.com/django/django/commit/72544950e198c08ac49ba9d878ea7440313b13a7
assumes that there should be a Translations instance.