breacharbiter: mark channel as fully closed after retribution enacted

breacharbiter.go

@@ -326,6 +326,12 @@ func (b *breachArbiter) exactRetribution(confChan *chainntnfs.ConfirmationEvent,
 			"have been claimed", breachInfo.chanPoint,
 			revokedFunds, totalFunds)
 
+		// With the channel closed, mark it in the database as such.
+		err := b.db.MarkChanFullyClosed(&breachInfo.chanPoint)
+		if err != nil {
+			brarLog.Errorf("unable to mark chan as closed: %v", err)
+		}
+
 		// TODO(roasbeef): add peer to blacklist?
 
 		// TODO(roasbeef): close other active channels with offending peer