kmmbvnr/django-fsm — pull request #57 by coredumperror (2014-09-18 00:46:20+00:00)
Title: Improved exception message for unmet transition conditions.

I noticed that the exception message attached to TransitionNotAllowed exceptions thrown when the *conditions* for a transition are unmet was the same as the one for when the *source state* was not correct. The message was confusing because it was telling me the source state was wrong, when it clearly wasn't, and it was not telling me that the conditions were unmet, which was the actual problem.