I have a Node where I revoke replies for the lowest usergroup type, which applies to all sub-nodes. Now, I want to change it so just one of those sub-nodes can have replies allowed by certain usergroups. It looks like the revoke set in the parent node overrides all explicit Allow settings downstream. Is that correct? Would I have to instead go in and set all of the sub-nodes to revoke except for that one so that the parent node isn't controlling the permissions?