The configure event asks the client to change its decoration
mode. The configured state should not be applied immediately.
Clients must send an ack_configure in response to this event.
See xdg_surface.configure and xdg_surface.ack_configure for
details.
In particular, ”the configured state should *not* be applied
immediately”.
Instead, treat CSD/SSD changes like all other window dimension related
changes: store the to-be mode in win->configure, and apply it in the
surface configure event.
This fixes an issue where foot incorrectly resized the window when the
server switched between CSD/SSD at run-time.
Older version of Plasma/KWin had an issue where buffer damage recorded
before the buffer was attached were ignored. This appears to have been
fixed now.
KDE resets all surface damage when a buffer is attached. Add a quirk
that adds a full-buffer damage to the surface. This quirk is intended
to be called after attaching a buffer to a surface.
