Summary:
KWin now correctly updates the client maximised state when we have a new
buffer in the new state. The quick tile unit test was unfortunately not
updated.
Reviewers: #kwin, graesslin
Reviewed By: #kwin, graesslin
Subscribers: graesslin, zzag, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D16739