D8837: Fix testtrash with qtbase 5.10 beta 4

[David Faure]

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

REPOSITORY
  R241 KIO

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D8837

To: elvisangelaccio, dfaure, thiago
Cc: #frameworks