D15135: [wayland] Syncronise pending geometry with acked configure requests

davidedmundson added a comment.


  > It's missing still a cleanup in case the client is broken as in not responding to any configure events or with the wrong serials and the vector would grow limitless. But we can do this in a second patch.>
  
  That's over complicating something that really doesn't need it.
  XdgShellInterface in frameworks will raise an error if serials are super wrong.

REPOSITORY
  R108 KWin

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D15135

To: davidedmundson, #kwin, romangg
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