Update the window geometry when changing decorations
requested to merge asturmlechner/qtwayland:asturmlechner/QTBUG-100467-update-window-geometry into kde/5.15
Windows' geometries should be updated when changing decorations.
Fixes: QTBUG-100467 Pick-to: 6.3 6.2 5.15 Change-Id: I5ec9968aa48422776d184a8fa2f5d86ecc3ca5c3 Reviewed-by: Eskil Abrahamsen Blomfeldt eskil.abrahamsen-blomfeldt@qt.io Reviewed-by: Liang Qi liang.qi@qt.io (cherry picked from commit 37e3789c)