Comment 9 for bug 1203357

The problem occurs at the moment.
I was logged in as 'duke' but logged out (via the session menu) and then logged in as 'administrator'.
In the session menu both users have a check mark behind their names, even though user 'duke' is no longer logged in.
Here's the output of loginctl:

administrator@desktop-pc:~$ loginctl list-users
       UID USER
      1002 duke
      1000 administrator

2 users listed.
administrator@desktop-pc:~$ loginctl user-status duke
duke (1002)
           Since: Tue 2013-12-10 16:37:31 CET; 3h 17min ago
           State: closing
        Sessions: *c2
          CGroup: systemd:/user/1002.user
                  └─c2.session
                    ├─1951 /usr/bin/pulseaudio --start --log-target=syslog
                    ├─1984 /usr/lib/pulseaudio/pulse/gconf-helper
                    └─5506 /usr/lib/x86_64-linux-gnu/indicator-sound/indicator-sound-service
administrator@desktop-pc:~$

Any idea what I can do to prevent this?

Thanks a lot in advance.