Comment # 38 on bug 966535 from Franck Bui

(In reply to Ludwig Nussel from comment #34)
> meanwhile systemd 229 got released, how about submitting that to check if
> the issue is resolved upstream already?

I did a quick test on v228 + the fix and my ssh session wasn't closed after
changing the runlevel. Similarly the opened session on tty1 remained open.

So it looks like the fix does the job.

However in the terminal where I issued the command I got this:

# systemctl isolate default.target 
PolicyKit daemon disconnected from the bus.
We are no longer a registered authentication agent.

So polkit.service is stopped while isolating the target, but since it's bus
activated, it doesn't seem to be a real issue since it's restarted
automatically on demand.

However it would be nice if the warning could be avoided...