D23098: Don't crash when X11Compositor tears down

zzag added a comment.


  Yes, it will work.
  
  I don't like this solution though because the code will be more difficult to reason about, e.g. calls to updateCompositeBlocked usually go to X11Compositor, but sometimes they may go somewhere else (Compositor).

REPOSITORY
  R108 KWin

REVISION DETAIL
  https://phabricator.kde.org/D23098

To: zzag, #kwin
Cc: romangg, kwin, LeGast00n, sbergeron, jraleigh, fbampaloukas, GB_2, mkulinski, ragreen, jackyalcine, Pitel, iodelay, crozbo, bwowk, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, hardening, jensreuterberg, abetts, sebas, apol, mart