D18466: Fixed calligra crashing when opening remote document

[Camilla Boemann]

boemann added a reviewer: danders.

REPOSITORY
  R8 Calligra

REVISION DETAIL
  https://phabricator.kde.org/D18466

To: niccolove, danders
Cc: boemann, Calligra-Devel-list, dcaliste, cochise, vandenoever