D23098: [x11] Fix crash during tear down

[Vlad Zagorodniy]

This revision was automatically updated to reflect the committed changes.
Closed by commit R108:d2bbd2a12484: [x11] Fix crash during tear down (authored by zzag).

REPOSITORY
  R108 KWin

CHANGES SINCE LAST UPDATE
  https://phabricator.kde.org/D23098?vs=65010&id=65044

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

AFFECTED FILES
  composite.cpp
  composite.h
  workspace.cpp

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