http://bugs.winehq.org/show_bug.cgi?id=22723
--- Comment #6 from Nikolay Sivov bunglehead@gmail.com 2010-06-25 17:14:56 --- So this one, right?:
commit d58b385b385b9ba244377c534f2a7e09c50aa997 Author: Piotr Caban piotr@codeweavers.com Date: Thu Apr 15 14:25:13 2010 +0200
msvcrt: Change implementation of setlocale.
Did you try to revert this commit?