https://bugs.freedesktop.org/show_bug.cgi?id=100745
--- Comment #12 from Michel Dänzer michel@daenzer.net --- (In reply to Dimitrios Liappis from comment #10)
The nuisance here is this almost always crashes gnome-shell. Attached coredump excerpt.
FWIW, that's most likely a gnome-shell/mutter bug.