Unable to decode serialized TxOut

Inizia in src/transaction.rs, alle definizioni di TxOut e TxOutWitness e al comportamento della serializzazione intorno alle righe citate, quindi riproduci il problema con la transazione fornita e lo snippet di round-trip. Il lavoro è completato quando un TxOut serializzato e deserializzato conserva il proprio rangeproof, così che unblind abbia esito positivo; aggiungi o aggiorna la copertura di regressione se il repository offre una posizione adatta.

There is an issue in serialization of TxOut, we're unable to decode it after serialization.
The problem lyes in the simplicityhl::elements::encode::serialize.
For unblinding it misses Rangeproof inside. For some reason it isn't serialized inside.
TxOut contains TxOutSecrets inside https://github.com/ElementsProject/rust-elements/blob/2d94f5dcb5e4a81838681c71ed8a49b337feecd2/src/transaction.rs#L703, but TxOutWitness has its own serialization https://github.com/ElementsProject/rust-elements/blob/2d94f5dcb5e4a81838681c71ed8a49b337feecd2/src/transaction.rs#L653 while TxOut just truncates it https://github.com/ElementsProject/rust-elements/blob/2d94f5dcb5e4a81838681c71ed8a49b337feecd2/src/transaction.rs#L719.

Here is a quick code snippet to test it:

use std::time::Duration;
        use simplicityhl::elements::{ Transaction, TxOut,};
        use simplicityhl::elements::bitcoin::secp256k1;
        use simplicityhl::elements::encode;
        
        pub const PUBLIC_SECRET_BLINDER_KEY: [u8; 32] = [1; 32];
        let secret_key = SecretKey::from_slice(&PUBLIC_SECRET_BLINDER_KEY).unwrap();

        
        let tx_id = "8e12b0c994293d15b7f43abaeb6c119ce3612ff00246b7ae9079dca90a35031f";
        let url = format!("https://blockstream.info/liquidtestnet/api/tx/{}/hex", tx_id);
        let client = reqwest::blocking::Client::builder()
            .timeout(Duration::from_secs(10))
            .build()
            .unwrap();
        let tx_hex = client
            .get(&url)
            .send()
            .unwrap()
            .error_for_status()
            .unwrap()
            .text()
            .unwrap();
        
        let transaction: Transaction = encode::deserialize(&hex::decode(&tx_hex).unwrap()).unwrap();
        let tx_out_from_reqwest = transaction.output[0].clone();
        assert!(tx_out_from_reqwest.unblind(secp256k1::SECP256K1, secret_key).is_ok());
        
        let tx_out_from_request_serialized = encode::serialize(&tx_out_from_reqwest);
        let tx_out_from_request_deserialized: TxOut = encode::deserialize(&tx_out_from_request_serialized).unwrap();
        
        assert!(tx_out_from_request_deserialized.unblind(secp256k1::SECP256K1, secret_key).is_ok());