Comment 1 for bug 1773473

I can confirm this in keystone's configuration documentation since we specify scope_types for domains [0], but they aren't rendered in the configuration guide [1]. Nice catch.

[0] https://github.com/openstack/keystone/blob/37ce5417418f8acbd27f3dacb70c605b0fe48301/keystone/common/policies/domain.py#L21
[1] https://docs.openstack.org/keystone/latest/configuration/policy.html