Comment 21 for bug 1439288

Bisecting and going back to that one commit are alternatives.

So ideally what you can do is clone git master, then use "git checkout <sha1>" to check out a particular commit. I suggest you try the commit before the one I linked and with that commit itself too. That way you can check whether this would be the offending change.

(Note: bisecting isn't terribly difficult, just RTFM or something like this: http://git-scm.com/book/en/v2/Git-Tools-Debugging-with-Git)