https://bugs.freedesktop.org/show_bug.cgi?id=37417
--- Comment #7 from Martin Gräßlin mgraesslin@kde.org 2011-06-18 02:14:18 PDT --- I am not able to find a clean revision - I went back as far as revisions from January, which just let KWin crash.
Is there anything else I can do to help you investigate the issue?