From the lease write a directory used as found names the node seat's hand-over as its way out, following the lease the engine hears (issue 774, ADR 0563 §5; rev-l3 round 1)

cmd/mesh-host/trust.go

@@ -65,6 +65,16 @@ func (t *meshTrust) Controller() ed25519.PublicKey {
 	return t.controller
 }
 
+// HandedAway says the controller's lease was handed away, as heard on the lease key.
+func (t *meshTrust) HandedAway() bool {
+	if t == nil {
+		return false
+	}
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	return t.handedAway
+}
+
 // Signers are the keys a mesh signature is verified against now: the controller's while it holds the lease, and the
 // vault's once read.
 func (t *meshTrust) Signers() []delivery.Signer {