htlcswitch: keep final htlc outcome

htlcswitch/link.go

@@ -1920,7 +1920,8 @@ func (l *channelLink) handleUpstreamMsg(msg lnwire.Message) {
 		// As we've just accepted a new state, we'll now
 		// immediately send the remote peer a revocation for our prior
 		// state.
-		nextRevocation, currentHtlcs, err := l.channel.RevokeCurrentCommitment()
+		nextRevocation, currentHtlcs, _, err :=
+			l.channel.RevokeCurrentCommitment()
 		if err != nil {
 			l.log.Errorf("unable to revoke commitment: %v", err)
 			return