D9005: fix crash during file copy after message box warning

[Anthony Fieroni]

anthonyfieroni added a comment.


  You can discard this one in front of https://phabricator.kde.org/D9004

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D9005

To: jtamate, #frameworks, dfaure
Cc: anthonyfieroni, elvisangelaccio