https://bugs.winehq.org/show_bug.cgi?id=30421
--- Comment #8 from Luke Kenneth Casson Leighton lkcl@lkcl.net --- hi austin, the entry is still in the fvwm2 FAQ http://www.fvwm.org/documentation/faq/#6.10 so i'd say it was safe to say that yes, the bug of the interaction between wine and fvwm2 is still present.
as someone who is on the outside of this bug as an end-user, it appears to be a misunderstanding of the window manager / x11 standard, between the wine and the fvwm2 teams. the last entry on this bug report was a recommendation that the wine developers get in touch with the fvwm2 developers to properly resolve this issue, and, logically, if that doesn't happen then, it's safe to say that the bug will not only remain, but that other people will continue to raise duplicates until it's resolved.