This page says that "CREATE GROUP is now an alias for CREATE ROLE.", But when u check the CREATE ROLE, u see they have different options, I don't know if this is on purpose or not, But if it's just an alias, then they should have the same options If it's not the "exact same", then I guess there should be some explanations about it
It seems an oversight. I'm attaching patches to fix it in all supported branches. v11 can be applied cleanly to v12/master.