grant_relinquish_not_subject· reason_code· applies to event_envelope, auth_decisionA ak.capability.relinquish named a grant whose subject is not the actor. Relinquish is subject-only precisely so it needs no revoke capability; allowing any other actor would turn it into an unauthorized revocation. The authority-root typed current result is not a grant and can never be a relinquish target. The rejection MUST NOT disclose whether the target exists.