D7947: Fix crash when closing dock widgets from within the widget

[Kevin Funk]

kfunk added subscribers: kossebau, kfunk.
kfunk added a comment.


  @kossebau You just added this parent -- do you think this is the correct fix?
  
  In any case, this fix should've probably gone to 5.2 branch(?)

REPOSITORY
  R32 KDevelop

REVISION DETAIL
  https://phabricator.kde.org/D7947

To: croick, #kdevelop, apol
Cc: kfunk, kossebau, kdevelop-devel
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