Comment 2 for bug 1818047

OK I see the problem, the template is only applied when using the CellMapping object, and the nova-status code is intentionally not using the objects, it is using the data models:

https://github.com/openstack/nova/blob/047f8c71c2bc45e4a2c00394f23cd953236f6050/nova/cmd/status.py#L191