D18397: Fix crash on canceling the file open dialog

[Nicolas Fella]

nicolasfella added a comment.


  I think the "proper" thing to do would be to check whether the resultCode is Activity.RESULT_OK or Activity.RESULT_CANCELED

REPOSITORY
  R223 Okular

REVISION DETAIL
  https://phabricator.kde.org/D18397

To: vkrause
Cc: nicolasfella, okular-devel, tfella, ngraham, darcyshen, aacid
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