[Bug 34631] 163music / WeChat: shadow of windows is always on the top of desktop

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=34631

--- Comment #11 from [e-mail] ---
I find that these gray shadows are actually a window. They are supposed to
appear with the main windows but not aware of multiple desktops of X Window and
appear on every desktop. With WeChat I also have a small info window noting
about new messages 「↟X条新消息 | x」 appear on every desktop when it's shown.

I can use xwininfo to get the id of the shadow window and use xdotool
windowunmap wid to make them disappear (but they'll reappear when I minimize
and restore the WeChat window).