https://bugs.winehq.org/show_bug.cgi?id=42377
--- Comment #5 from Evgeniy Polyakov zbr@ioremap.net --- Yup, I saw that warning, but it really breaks the things and from higher level point of view looks like a bug which must be fixed somewhere.
If wine developers confirm this is not a wine bug, but feature (which might be because of msdn memo, although it never shows up in windows in my tests), I will continue investigating how it can be fixed in golang, but so far I'm curious whether it can be fixed in wine or confirmed not to be.