D9189: Do not crash when setting new line edit on an editable combo box

[Anthony Fieroni]

anthonyfieroni accepted this revision.
anthonyfieroni added a comment.
This revision is now accepted and ready to land.


  Let's David says but i think KOpenWithDialog should be fixed as well, why we need new KLineEdit while KHistoryComboBox do it for us?
  https://phabricator.kde.org/source/kio/browse/master/src/widgets/kopenwithdialog.cpp;befcbbd4e36b8f2a948e2baa88a0642e24d55564$601

REPOSITORY
  R284 KCompletion

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D9189

To: mwolff, dfaure, anthonyfieroni
Cc: #frameworks
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