https://bugs.winehq.org/show_bug.cgi?id=34122
--- Comment #36 from Robert Walker bob.mt.wya@gmail.com --- (In reply to Sebastian Lackner from comment #34)
This issue should be fixed with http://source.winehq.org/git/wine.git/patch/ 12fc123338f7af601d3fe76b168a644fcd7e1362, could you please retest?
Tested wine-1.9.9-118-ge1970c8 ...
I can confirm the Steam Client backup/restore browser is also now sorting directories!! Great stuff.