[1.2.X] Fixed error in AnonymousUser docs since [12316]

      instead of ``False``.

    * :meth:`~django.contrib.auth.models.User.is_authenticated()` returns

      ``False`` instead of ``True``.

    * :meth:`~django.contrib.auth.models.User.has_perm()` always returns

      ``False``.

    * :meth:`~django.contrib.auth.models.User.set_password()`,

      :meth:`~django.contrib.auth.models.User.check_password()`,

      :meth:`~django.contrib.auth.models.User.save()`,