comment in trasnfer_to_new
@@ -2846,6 +2846,7 @@ impl<'a, E: RescueEngine + JubjubEngine> ZkSyncCircuit<'a, E> {
*pubdata_holder = packed_pubdata;
// construct signature message preimage (serialized_tx)
+ // we use here transfer tx_code to allow user sign message without knowing whether it is transfer_to_new or transfer
let mut serialized_tx_bits = vec![];
serialized_tx_bits.extend(reversed_tx_type_bits_be(TransferOp::OP_CODE));
