D18339: Fix DesktopGrid drag on X11

davidedmundson added a comment.


  > When can a client end up on several desktops? (on X11)
  
  It can't ultimately end up on multiple. This is the entry point for other parts of kwin to set the desktops and this is the line that reduces X down to 1.
  You could make a case that DesktopGrid/whatever else should handle the abstraction and never request more than 1 but we still need to have a guard and we should still match the docs in EffectWindow.

REPOSITORY
  R108 KWin

REVISION DETAIL
  https://phabricator.kde.org/D18339

To: davidedmundson, #kwin
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