For anyone, like me, who is naive enough to think that it's possible to set XDG_CACHE_HOME or DCONF_PROFILE to values other than the default, note that this fix _only_ allows access to the "user" profile. If you rename your user profile, you cannot use any apparmor-enabled application that uses dconf. I know there's nothing to be done about this, but I'm leaving this comment here lest anyone else encounter this situation.
For anyone, like me, who is naive enough to think that it's possible to set XDG_CACHE_HOME or DCONF_PROFILE to values other than the default, note that this fix _only_ allows access to the "user" profile. If you rename your user profile, you cannot use any apparmor-enabled application that uses dconf. I know there's nothing to be done about this, but I'm leaving this comment here lest anyone else encounter this situation.