http://bugs.winehq.org/show_bug.cgi?id=30814
--- Comment #25 from Raditz12 a25422@ua.pt --- It's not the same bug, altough the effect is the same. I'm using the UserPatch mentioned in the link above and the Wine alt+tab bug is still there by default.. as it's 100% Wine related.
I would like to know if the patch code I presented above works with other people, as it fixes the Wine alt+tab bug 100% for me :). As a matter of fact, that patch code was made by the UserPatch creator himself, specifically for Wine source :).