http://bugs.winehq.org/show_bug.cgi?id=21290
--- Comment #7 from Vincent Povirk madewokherd@gmail.com 2010-01-10 15:02:19 --- I think you've probably got it right this time. That change is relevant to window management.
To go to that revision, run: $ git checkout 00b06dac8
To go to the revision before that, add a caret: $ git checkout 00b06dac8^
If the test was correct, that revision will be broken but the one before will not.