D13495: Fix XDGV6 popup test

[Marco Martin]

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

REPOSITORY
  R127 KWayland

REVISION DETAIL
  https://phabricator.kde.org/D13495

To: davidedmundson, #kwin, mart
Cc: romangg, kde-frameworks-devel, michaelh, ngraham, bruns