https://bugs.winehq.org/show_bug.cgi?id=36216
--- Comment #43 from Johannes Dewender wine@JonnyJD.net --- The patch was sent to wine, but there was no reaction. Possibly because it isn't/wasn't known that this fixes a bug: https://www.winehq.org/pipermail/wine-patches/2015-January/136652.html
I got the info from https://github.com/wine-compholio/wine-staging/commit/ad5dcc97522c2087727075... (where the patch was added to wine-staging)