[UTXORPC] ReadUtxos response for a utxo without a datum is showing some data

[nelsonksh]

grpcurl -plaintext -d '{"keys": [{"hash": "eRMJtrD6zICz+olugwmZ577zIepSefa+2+EnnuHp1K4="}]}' localhost:50051 utxorpc.v1alpha.query.QueryService.ReadUtxos

Result:

{
  "items": [
    {
      "nativeBytes": "glg5AJ1hk0QlxWy+JWCbQgZaNWvZunvonoqgIo6R7aam1QLMzKKDJ/IuoQPXLLQ9gK4z7mgkNrZADfm0GgCYloA=",
      "txoRef": {
        "hash": "eRMJtrD6zICz+olugwmZ577zIepSefa+2+EnnuHp1K4="
      },
      "cardano": {
        "address": "AJ1hk0QlxWy+JWCbQgZaNWvZunvonoqgIo6R7aam1QLMzKKDJ/IuoQPXLLQ9gK4z7mgkNrZADfm0",
        "coin": "10000000",
        "datum": {
          "hash": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="
        }
      }
    }
  ],
  "ledgerTip": {
    "slot": "70561586",
    "hash": "Lwm9Lt8yxKIx3gYlCLq80rxdbDXkEheyrHEYlm+0040="
  }
}

Expected:

{
  "items": [
    {
      "nativeBytes": "glg5AJ1hk0QlxWy+JWCbQgZaNWvZunvonoqgIo6R7aam1QLMzKKDJ/IuoQPXLLQ9gK4z7mgkNrZADfm0GgCYloA=",
      "txoRef": {
        "hash": "eRMJtrD6zICz+olugwmZ577zIepSefa+2+EnnuHp1K4="
      },
      "cardano": {
        "address": "AJ1hk0QlxWy+JWCbQgZaNWvZunvonoqgIo6R7aam1QLMzKKDJ/IuoQPXLLQ9gK4z7mgkNrZADfm0",
        "coin": "10000000",
        "datum": {}
      }
    }
  ],
  "ledgerTip": {
    "slot": "70561662",
    "hash": "ZH0Ftvxp2jFcrfVvUY3EyIvnyvjbXoSarD7+FdZyBVw="
  }
}