D23200: Fixes a crash in Peruse triggered by baloo

[Stefan Brüns]

bruns accepted this revision.
This revision is now accepted and ready to land.

REPOSITORY
  R293 Baloo

BRANCH
  fixCrashWithEmptyFolder

REVISION DETAIL
  https://phabricator.kde.org/D23200

To: tcanabrava, #baloo, astippich, bruns, poboiko, ngraham
Cc: ngraham, kde-frameworks-devel, #baloo, LeGast00n, fbampaloukas, domson, ashaposhnikov, michaelh, astippich, spoorun, bruns, abrahams
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