Confidential pegin output not showing in 2FA Green Wallet

### Description

There was a [confidential peg-in transaction on Liquid](https://liquid.network/tx/caeb8e3703b8a1665c718b9426c91cf342c1d285fcc1693588ddc369009c4614) recently and one of its outputs was sent to a 2FA 2-of-2 address on Green Wallet. It is not showing there.

### Version

4.0.30 on Android, 2.0.7 AppImage on Linux

### Steps to reproduce

1. Make a "MULTISIG / 2OF2" account and generate a new address there. This will be `ADDR2` later.
2. Call `elements-cli getpeginaddress` and send some bitcoin to that address. We will refer to this address as `PEGINADDRESS` later and to the claimscript as `CLAIMSCRIPT`.
3. Call `elements-cli -stdin createrawtransaction` with following input:
```
[{"txid":"UBLINDED","vout":UBLINDEDVOUT},{"txid":"PEGIN","vout":PEGINVOUT,"pegin_bitcoin_tx":"HEX_TX","pegin_txout_proof":"HEX_PROOF","pegin_claim_script":"CLAIMSCRIPT"}]
[{"ADDR1":ADDR1_AMT},{"ADDR2":ADDR2_AMT},{"fee":FEE}]
```

Where the capitalized variables mean following:

- Inputs:
- an unspent transaction which was sent blinded
- `UBLINDED` is an unspent Liquid transaction ID
- `UBLINDEDVOUT` is the vout of used Liquid UTXO
- a pegin
- `PEGIN` is the Bitcoin transaction ID which sends an output to PEGINADDRESS
- `PEGINVOUT` is the exact output index going to PEGINADDRESS
- `HEX_TX` is the raw full hex of the transaction itself
- `HEX_PROOF` is a hex-encoded proof that `PEGIN` transaction was included in a block
- `CLAIMSCRIPT` was obtained above in step 2
- Outputs:
- a confidential address that receives part of the inputs
- `ADDR1` receives `ADDR1_AMT`
- a confidential address that receives the rest of the inputs minus fee
- `ADDR2` receives `ADDR2_AMT`
- a non-confidential fee
- `FEE` is the fee denominated in whole coins like all the other amounts here (e.g. `0.00000123` would be 123 sat fee)

Sum of the amounts (not explicitly written in the input but known) is the SUM.

SUM = ADDR1_AMT + ADDR2_AMT + FEE

After `createrawtransaction` also pipe the hex output to `blindrawtransaction` and consequently to `signrawtransactionwithwallet` from which output the `.hex` is to be broadcast.

### Expected behaviour

I would expect Blockstream Green wallet to show the amount received to 2FA address. Same like Aqua Wallet shows similar output (coming from a blinded pegin transaction) to its 1of1 wallet.

### Actual behaviour

The incoming transaction is not even shown in the wallet.

### Screenshots

`$ elements-cli gettxout caeb8e3703b8a1665c718b9426c91cf342c1d285fcc1693588ddc369009c4614 1`

```json
{
"bestblock": "85ad26d9a8a062e2e3a0dc6e6401940e92761f3186de0c689a8234e7b5b96f2f",
"confirmations": 2138,
"valuecommitment": "08c33dee6a5d5535eeae17cd9c600c2be4458f87d123fc1d101c22d2d454aae9db",
"assetcommitment": "0a0bab251a5d4a422af1818479810b08709bf59506eeb36468b52843fb4b1dfeab",
"commitmentnonce": "",
"scriptPubKey": {
"asm": "OP_HASH160 644bb0b401a097c97d4e84e74e2a1a0bb38f3c84 OP_EQUAL",
"desc": "addr(GrKqeUAzg1M2ZxHxgqtsUsYGLPaSJXxbVf)#0ng55r69",
"hex": "a914644bb0b401a097c97d4e84e74e2a1a0bb38f3c8487",
"address": "GrKqeUAzg1M2ZxHxgqtsUsYGLPaSJXxbVf",
"type": "scripthash"
},
"coinbase": false
}
```

### Device or machine

Android 11 smartphone running Blockstream Green wallet v4.0.30

Linux x86_64 Ubuntu running latest `BlockstreamGreen-x86_64.AppImage` (2.0.7)

### Additional info

Sending an output to a clear 1of1 address in Blockstream Green wallet was not tried yet.