[Bug 58893] Window caption updates have huge delay

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58893

--- Comment #2 from Dmitry Timoshkov  ---
(In reply to Rémi Bernon from comment #1)
> Created attachment 79603 [details]
> Possible fix
>
> Does this help?

Yes, it does. However, why XFlush() is necessary? In all existing Wine
versions, starting from 1.0 till 10.0, sync_window_text() doesn't call XFlush()
and changing window text worked smoothly.