https://bugs.winehq.org/show_bug.cgi?id=42820
--- Comment #11 from Pekka Helenius fincer89@hotmail.com --- Ah okay, that's nice to know. I couldn't reproduce bug 43158.
Yes, I just rebased the patch, nothing else really.
Józef may be the only guy who can answer to your question. However, as I've checked submitted patches list on https://source.winehq.org/patches/ and Wine Staging patches on GitHub (https://github.com/wine-compholio/wine-staging/commits/master) I can't see any of them related to DX11 Multisampling. Obviously, I don't know anything about private/test patches which Wine devs may be working on, however.