Comment # 12 on bug 1206500 from Andrei Borzenkov

(In reply to Marcus Meissner from comment #7)
> likely caused by openssh update 
> 
> https://lists.suse.com/pipermail/sle-updates/2022-December/026905.html
> 
>    This update for openssh fixes the following issues:
> 
>    - Make ssh connections update their dbus environment (bsc#1179465):
>      * Add openssh-dbus.sh, openssh-dbus.csh, openssh-dbus.fish

This is entirely bogus and we are not even allowed to see bug it was supposed
to fix.

On patched Leap 15.4 in GUI session:

bor@localhost:~> systemctl --user show-environment  | grep DISPLAY
DISPLAY=localhost:0.0

Now ssh into it

bor@bor-Latitude-E5450:~$ ssh -o UserKnownHostsFile=/dev/null -o
StrictHostKeyChecking=off localhost -p 2222 -Y
Warning: Permanently added '[localhost]:2222' (ED25519) to the list of known
hosts.
(bor@localhost) Password: 
Last login: Sun Dec 25 16:22:41 2022 from console
Have a lot of fun...
bor@localhost:~> exit
������������������������������
Connection to localhost closed.
bor@bor-Latitude-E5450:~$ 

In the same GUI session on Leap 15.4:

bor@localhost:~> systemctl --user show-environment  | grep DISPLAY
DISPLAY=localhost:10.0
bor@localhost:~> 

From now on systemd user instance has wrong DISPLAY variable and every user
service will have the wrong DISPLAY variable and will fail if it needs to
access it.