Wallet becomes unusable after trying to send funds from the wallet to itself.

[oren-z0]

Describe the bug
Wallet becomes unusable after sending funds from the wallet to itself.

To Reproduce

1. Remove ~/.specter-dev and /tmp/specter_btc_regtest_plain_datadir if exist.
2. Activate the virtualenv and start bitcoind on regtest with: python3 -m cryptoadvance.specter bitcoind.
3. Activate the virtualenv in a new terminal and start specter-desktop with: python3 -m cryptoadvance.specter server --config DevelopmentConfig --debug.
4. Setup the connection to bitcoin-core.
5. Create a new "Bitcoin Core" hotwallet-device named "core1" and a new wallet "wallet1".
6. Restart the bitcoind process so it will start mining to the first address of "wallet1".
7. Create a second "Bitcoin Core" hotwallet-device named "core2" and a new wallet "wallet2".
8. You will be able to send funds from wallet1 to wallet2 and vice versa.
9. Trying send funds from a wallet1 to itself will result in a "list index out of range" error, and the wallet will become unusable.

Debug logs:

Exception in thread Thread-1142 (_update):
Traceback (most recent call last):
  File "/Users/oren/private_workspace/specter-desktop/src/cryptoadvance/specter/wallet/wallet.py", line 721, in check_utxo
    searched_vout = [
IndexError: list index out of range

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/Cellar/python@3.10/3.10.15/Frameworks/Python.framework/Versions/3.10/lib/python3.10/threading.py", line 1016, in _bootstrap_inner
    self.run()
  File "/Users/oren/private_workspace/specter-desktop/src/cryptoadvance/specter/util/flask.py", line 32, in run
    super().run()
  File "/usr/local/Cellar/python@3.10/3.10.15/Frameworks/Python.framework/Versions/3.10/lib/python3.10/threading.py", line 953, in run
    self._target(*self._args, **self._kwargs)
  File "/Users/oren/private_workspace/specter-desktop/src/cryptoadvance/specter/managers/wallet_manager.py", line 243, in _update
    self.wallets[wallet_name].update()
  File "/Users/oren/private_workspace/specter-desktop/src/cryptoadvance/specter/wallet/wallet.py", line 497, in update
    self.getdata()
  File "/Users/oren/private_workspace/specter-desktop/src/cryptoadvance/specter/wallet/wallet.py", line 745, in getdata
    self.check_utxo()
  File "/Users/oren/private_workspace/specter-desktop/src/cryptoadvance/specter/wallet/wallet.py", line 741, in check_utxo
    raise SpecterError(f"Failed to load utxos, {type(e).__name__}: {e}")
cryptoadvance.specter.specter_error.SpecterError: Failed to load utxos, IndexError: list index out of range

Expected behavior
Wallet should be able to send funds to its own address.

Screenshots
https://v.nostr.build/iNEmbAfNpV96Vcfu.mov

Desktop (please complete the following information):

• Where is your node running: Mac
• Where is your specter running: Mac
• If you're running a binary, which OS: Mac OSX
• Browser: Chrome
• Specter Version: Running latest commit in dev mode with regtest: 0ac4640

[oren-z0]

#2467 doesn't solve the problem.
I'm getting a different error message: "Failed to load utxos, KeyError: '51845...'":

Traceback (most recent call last):
  File "/Users/oren/private_workspace/specter-desktop/src/cryptoadvance/specter/wallet/wallet.py", line 699, in check_utxo
    tx: WalletAwareTxItem = txlist_dict[utxo_txid]
KeyError: '518457cbb7fa87fe90980b32890721fef2a6c850497369484423ae361dcb2ae8'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/oren/private_workspace/specter-desktop/src/cryptoadvance/specter/wallet/wallet.py", line 705, in check_utxo
    tx: WalletAwareTxItem = txlist_dict[utxo_txid]
KeyError: '518457cbb7fa87fe90980b32890721fef2a6c850497369484423ae361dcb2ae8'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/Cellar/python@3.10/3.10.15/Frameworks/Python.framework/Versions/3.10/lib/python3.10/threading.py", line 1016, in _bootstrap_inner
    self.run()
  File "/Users/oren/private_workspace/specter-desktop/src/cryptoadvance/specter/util/flask.py", line 32, in run
    super().run()
  File "/usr/local/Cellar/python@3.10/3.10.15/Frameworks/Python.framework/Versions/3.10/lib/python3.10/threading.py", line 953, in run
    self._target(*self._args, **self._kwargs)
  File "/Users/oren/private_workspace/specter-desktop/src/cryptoadvance/specter/managers/wallet_manager.py", line 243, in _update
    self.wallets[wallet_name].update()
  File "/Users/oren/private_workspace/specter-desktop/src/cryptoadvance/specter/wallet/wallet.py", line 497, in update
    self.getdata()
  File "/Users/oren/private_workspace/specter-desktop/src/cryptoadvance/specter/wallet/wallet.py", line 756, in getdata
    self.check_utxo()
  File "/Users/oren/private_workspace/specter-desktop/src/cryptoadvance/specter/wallet/wallet.py", line 752, in check_utxo
    raise SpecterError(f"Failed to load utxos, {type(e).__name__}: {e}")
cryptoadvance.specter.specter_error.SpecterError: Failed to load utxos, KeyError: '518457cbb7fa87fe90980b32890721fef2a6c850497369484423ae361dcb2ae8'