sddm bug #802811 don't upgrade yet

[paxmark1]

From 802811 message # 70

Now the second one might most probably be because qtx11extras migrated to
> testing when it shouldn't have. This is the first time it happens for us.

If you have sddm installed, hold off read the bug message.  Normally most bugs like this get caught in sid-unstable. 

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=802811   

edited apt-listbugs  will alert you to investigate if you have it installed.