asmCrypto.Modulus can break when leading zeroes are supplied

[sorgloomer]

While the following two represent the same number:

console.log(
  new asmCrypto.BigNumber(asmCrypto.hex_to_bytes("AABBCCDDAABBCCDD")).toString()
); // "aabbccddaabbccdd"

console.log(
  new asmCrypto.BigNumber(asmCrypto.hex_to_bytes("00AABBCCDDAABBCCDD")).toString()
); // "aabbccddaabbccdd"

The comodulus inside the Modulus class behaves differently:

console.log(
  new asmCrypto.Modulus(asmCrypto.hex_to_bytes("AABBCCDDAABBCCDD")).comodulusRemainder.toString()
); // "5544332255443323"

console.log(
  new asmCrypto.Modulus(asmCrypto.hex_to_bytes("00AABBCCDDAABBCCDD")).comodulusRemainder.toString()
); // "6ad813226ad81321"

It seems to appear only when the significant part of the number is a multiple of 4 bytes long.