Comment # 10 on bug 1192428 from Dominique Leuenberger

https://openqa.opensuse.org/tests/2282941#next_previous

This happens often enough to be 'annoying' - to the biggest surprise always in
the kde_usb test flavor; 'sometimes it works' seems, looking at the history,
more realistic than 'fails sometimes' (still: the effect is observed in
multiple stagins, in some, it 'seems' to show more often than in others, but
it's not dependent on the package currently staged - it must be an issue with
already shipped packages)