Ah, yes, had my wires crossed, and thinking we're logging out from all registries. Perhaps it's ok for now, considering this a "these are the URLs we tried to logout from, and this is why they failed".    Only thing I'm wondering is if we produce an error if "no entry was found"; if so, and if we would be able to detect that cause, we (IMO) should ignore those, and treat it as an idempotent action.