https://bugs.winehq.org/show_bug.cgi?id=42512
--- Comment #8 from Sebastian Lackner sebastian@fds-team.de --- (In reply to Anthony Jagers from comment #7)
The problem occurs between these two commits.
commit 2ae8a0be027c415c3a57406b74ea7c0055d5d015 bad commit dc52cbef3ce99ed539d673ebd712c646a05bb4cd good
That starts after Jacek Caban committed to development after Feb 20th. His commit dc52* rebases to.
That's all I know for now.
Have you checked that it is not fixed by http://source.winehq.org/patches/data/130627?