Comment # 1 on bug 965514 from Wolfgang Bauer

I noticed this issue as well during the weekend (I don't often use "Filemanager
- Super User Mode").
This must be a regression in one of the updates, it definitely didn't crash
when Leap 42.1 was released... ;-)

The problem is not related to running dolphin as root though.
Dolphin crashes on exit if you specify a window icon via the --icon option when
running it (and the dolphinsu.desktop file does this).

The same crash happens when you run e.g. "dolphin --icon system-file-manager".

Maybe we should just remove that parameter. It doesn't seem to make a
difference anyway, dolphin uses the same icon with or without it AFAICT.
Opinions are of course welcome.

In any case, I will report the crash upstream later today...

Seems to be dolphin-specific though, I cannot reproduce it with other KF5
applications.