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 Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1259562 Title: Old guest users pollute accountsservice Status in Light Display Manager: New Status in “lightdm” package in Ubuntu: New Bug description: When you log out from a guest session, the temporary guest account is removed - but only almost. The folder /var/lib/AccountsService/users gets 'polluted' with files for previous guest users. This issue is possibly related to bug #1038881. To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1259562/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
