I'm sorry, I misread the bug description...
maybe you know of this quite similar bug?
1) log on to normal account.
2) switch to guest account.
3) log out of guest account so that (the locked original session appears)
4) choose switch user to get to the gdm menu.
I'm sorry, I misread the bug description...
maybe you know of this quite similar bug?
1) log on to normal account.
2) switch to guest account.
3) log out of guest account so that (the locked original session appears)
4) choose switch user to get to the gdm menu.
now there is no way to log in as a guest.