Commit fdb4f6635351b3f3b15b5e948c39e9efcdd615df causing Emacs to crash for me

I don't understand why, but this commit: http://gitorious.org/evil/evil/commit/fdb4f6635351b3f3b15b5e948c39e9efcdd615... … has caused emacs to start crashing for me. A video to prove I'm not crazy: http://screencast.com/t/58vWTsW0TTh I'm using Vanilla Emacs for OS X, 23.3, downloaded here: http://emacsformacosx.com/ Crash dump: http://pastie.org/2419689 I'm betting it's an Emacs bug that is being surfaced by that change, because it should not be possible to crash emacs by writing emacs lisp like that. Tim