Update local_comms.js

lib/local_comms.js

@@ -425,6 +425,7 @@ function Database(){
         let txn = this.env.beginTxn();
         let blockData = global.protos.Block.decode(txn.getBinary(this.blockDB, blockId));
         blockData.valid = false;
+        blockData.unlocked = true;
         txn.putBinary(this.blockDB, blockId, global.protos.Block.encode(blockData));
         txn.commit();
     };