The attached patch is one way to fix the issue. I know that you are not supposed to edit in /var/lib/AccountsService/users directly, so it's probably not the most proper solution you can think of, but it works. ;-)
** Patch added: "delete-guest-from-accountsservice.patch" https://bugs.launchpad.net/lightdm/+bug/1259562/+attachment/3926688/+files/delete-guest-from-accountsservice.patch ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1259562 Title: Old guest users pollute accountsservice To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1259562/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs