Comment 6 for bug 1842061

we can discuss deprecating the unscoped support or the filter in general as we now have better alternatives such as https://docs.openstack.org/nova/latest/reference/isolate-aggregates.html

but given the upgrade impact this would need a deprecation cycle at a minium to notify operators that they will need to resize all there instances to update the flavor which is not cheap or we will need to provide tooling such as nova-manage commands or similar to help with that.

that falls out of the scope of a simple bug fix in my view as we would have to come to a consensus on how to change the behavior which likely should be done via a spec or (specless blueprint and mailing list/ptg discussion)

given the above setting this to wont fix for now.