Deregistering from an Operations Center

Is there an actual way to deregister an IncusOS machine from an Operation Center?

IIRC you can maybe do this from the Operations Center itself (>Provisioning >Server >ServerX >Delete) [I don’t have a working one right now, mid teardown atm] but if your Operations Center ends up destroyed for whatever reason then I don’t think there’s a mechanism to deregister via Incus CLI?

I’ve tried incus admin os system provider edit to update the key/token/(url) but the given IncusOS instance complains:
Failed to refresh Operations Center registration err=error from operations center: Failed self-updating from server "X.X.X.X:57182": Failed to find server ( ``https://X.X.X.X:8443``) with cause "" by certificate (fingerprint: XXXXX): Not authorized.

Interestingly, 8443 is not the port I specify in the provider config, it should be 7443 (as this is a proxy-port VM opcenter running on an IncusOS server, so 8443 was taken by the default Incus).

Jumping in. I have a server that was registrered to an old OC (no longer available) and I’d like to register it to a new one. Is this possible ?