http://bugs.winehq.org/show_bug.cgi?id=32706
--- Comment #3 from Marenz winehq@supradigital.org 2013-01-11 23:22:13 CST --- I just finished a git bisect and the commit that introduced this problem for me was this one:
dc0cef3d3b68ae10c80c13846265a9317eecdfd3 is the first bad commit commit dc0cef3d3b68ae10c80c13846265a9317eecdfd3 Author: Andrew Eikum aeikum@codeweavers.com Date: Mon Dec 3 10:28:11 2012 -0600
wineoss.drv: Improve IsFormatSupported handling.
:040000 040000 5bd844a8be682e09519e17485f43bd425b35eacc abf616c99f804d1cf6acf771e4d344a0ba903498 M dlls
I have a look at the wikipage about regression testing now.