[Bug 36787] Gex 3D renders very slowly since Wine 1.7.14

http://bugs.winehq.org/show_bug.cgi?id=36787

--- Comment #3 from Ronny Schmatzler  ---
c1032e977bb9f850e3aea28dd79e3d7c2244cd6c is the first bad commit
commit c1032e977bb9f850e3aea28dd79e3d7c2244cd6c                                 
Author: Henri Verbeet                                 
Date:   Tue Mar 4 10:21:33 2014 +0100

wined3d: Filter redundant WINED3D_MAP_DISCARD buffer maps.

:040000 040000 7dcd54b72f0897f5a8b86b1228631480f9d4a948
c31af3c38b06ebe042d771cfd9e977900d0dbf01 M   dlls