mozilla/browserid — pull request #2855 by jedp (2012-12-12 03:24:10+00:00)
Title: Bug 820446 - issue with bugzilla and persona login

Monday 2012-12-10 while rolling out train-2012.11.23 to production there was
an issue with login to bugzilla with persona.

jrgm theorized that this was a string/int comparison error
(http://irclog.gr/#show/irc.mozilla.org/identity/187967)

git bisecting confirms that he is correct, and that the problem crept in here:
https://github.com/mozilla/browserid/commit/d494afbbce176697998f3b39764200d8732ad256#L28L77