### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current behaviour

crash

### Expected behaviour

no crash

### Steps to reproduce

```
./src/qt/bitcoin-qt -datadir=/tmp/ -regtest -printtoconsole=1 -nolisten  # Create fresh datadir (empty), stop
mv /tmp/reg_scratch/.bitcoin/regtest/wallet.1491854176.bak /tmp/regtest/wallets/  # Move over a wallet file
(Start qt with the same args as above)
(Call migratewallet)
```



### Relevant log output

```
#5  0x0000555555bd2bda in wallet::CWallet::GetTxDepthInMainChain(wallet::CWalletTx const&) const (this=<optimized out>, wtx=<optimized out>) at /usr/bin/../lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/std_function.h:290
#6  wallet::CWallet::MarkConflicted(uint256 const&, int, uint256 const&)::$_0::operator()(wallet::CWalletTx&) const (this=<optimized out>, wtx=<optimized out>) at wallet/wallet.cpp:1351
#7  std::__invoke_impl<wallet::CWallet::TxUpdate, wallet::CWallet::MarkConflicted(uint256 const&, int, uint256 const&)::$_0&, wallet::CWalletTx&>(std::__invoke_other, wallet::CWallet::MarkConflicted(uint256 const&, int, uint256 const&)::$_0&, wallet::CWalletTx&) (__f=<optimized out>, __args=<optimized out>) at /usr/bin/../lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/invoke.h:61
#8  std::__invoke_r<wallet::CWallet::TxUpdate, wallet::CWallet::MarkConflicted(uint256 const&, int, uint256 const&)::$_0&, wallet::CWalletTx&>(wallet::CWallet::MarkConflicted(uint256 const&, int, uint256 const&)::$_0&, wallet::CWalletTx&) (__fn=<optimized out>, __args=<optimized out>) at /usr/bin/../lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/invoke.h:114
#9  std::_Function_handler<wallet::CWallet::TxUpdate (wallet::CWalletTx&), wallet::CWallet::MarkConflicted(uint256 const&, int, uint256 const&)::$_0>::_M_invoke(std::_Any_data const&, wallet::CWalletTx&)
    (__functor=<optimized out>, __args=<optimized out>) at /usr/bin/../lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/std_function.h:290
#10 0x0000555555bbb73b in std::function<wallet::CWallet::TxUpdate (wallet::CWalletTx&)>::operator()(wallet::CWalletTx&) const (this=0x7fff417f6bc0, __args=...)
    at /usr/bin/../lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/std_function.h:591
#11 wallet::CWallet::RecursiveUpdateTxState(uint256 const&, std::function<wallet::CWallet::TxUpdate (wallet::CWalletTx&)> const&) (this=0x7fff2db509f0, tx_hash=..., try_updating_state=...) at wallet/wallet.cpp:1382
#12 0x0000555555bb9c4b in wallet::CWallet::MarkConflicted(uint256 const&, int, uint256 const&) (this=0x7fff2db509f0, hashBlock=..., conflicting_height=-1, hashTx=...) at wallet/wallet.cpp:1361
#13 0x0000555555bb9b55 in wallet::CWallet::LoadToWallet(uint256 const&, std::function<bool (wallet::CWalletTx&, bool)> const&) (this=0x7fff2db509f0, hash=<optimized out>, fill_wtx=<optimized out>) at wallet/wallet.cpp:1213
#14 0x0000555555bfc8c6 in wallet::LoadTxRecords(wallet::CWallet*, wallet::DatabaseBatch&, std::vector<uint256, std::allocator<uint256> >&, bool&)::$_0::operator()(wallet::CWallet*, DataStream&, CDataStream&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&) const (this=0x7fff417f6ed0, pwallet=0x7fff2db509f0, key=<optimized out>, value=..., err="") at wallet/walletdb.cpp:1065
#15 std::__invoke_impl<wallet::DBErrors, wallet::LoadTxRecords(wallet::CWallet*, wallet::DatabaseBatch&, std::vector<uint256, std::allocator<uint256> >&, bool&)::$_0&, wallet::CWallet*, DataStream&, CDataStream&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&>(std::__invoke_other, wallet::LoadTxRecords(wallet::CWallet*, wallet::DatabaseBatch&, std::vector<uint256, std::allocator<uint256> >&, bool&)::$_0&, wallet::CWallet*&&, DataStream&, CDataStream&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&) (__f=..., __args=<optimized out>, __args=<optimized out>, __args=..., __args="")
    at /usr/bin/../lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/invoke.h:61
#16 std::__invoke_r<wallet::DBErrors, wallet::LoadTxRecords(wallet::CWallet*, wallet::DatabaseBatch&, std::vector<uint256, std::allocator<uint256> >&, bool&)::$_0&, wallet::CWallet*, DataStream&, CDataStream&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&>(wallet::LoadTxRecords(wallet::CWallet*, wallet::DatabaseBatch&, std::vector<uint256, std::allocator<uint256> >&, bool&)::$_0&, wallet::CWallet*&&, DataStream&, CDataStream&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&) (__fn=..., __args=<optimized out>, __args=<optimized out>, __args=..., __args="")
    at /usr/bin/../lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/invoke.h:114
#17 std::_Function_handler<wallet::DBErrors (wallet::CWallet*, DataStream&, CDataStream&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&), wallet::LoadTxRecords(wallet::CWallet*, wallet::DatabaseBatch&, std::vector<uint256, std::allocator<uint256> >&, bool&)::$_0>::_M_invoke(std::_Any_data const&, wallet::CWallet*&&, DataStream&, CDataStream&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&)
    (__functor=..., __args=<optimized out>, __args=<optimized out>, __args=..., __args="") at /usr/bin/../lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/std_function.h:290
#18 0x0000555555bf87dc in std::function<wallet::DBErrors (wallet::CWallet*, DataStream&, CDataStream&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&)>::operator()(wallet::CWallet*, DataStream&, CDataStream&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&) const (this=0x7fff417f6ed0, __args=0x7fff2db509f0, __args=..., __args=..., __args="")
    at /usr/bin/../lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/std_function.h:591
#19 wallet::LoadRecords(wallet::CWallet*, wallet::DatabaseBatch&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, DataStream&, std::function<wallet::DBErrors (wallet::CWallet*, DataStream&, CDataStream&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&)>) (pwallet=pwallet@entry=0x7fff2db509f0, batch=..., key="tx", prefix=..., load_func=...) at wallet/walletdb.cpp:509
#20 0x0000555555bf8542 in wallet::LoadRecords(wallet::CWallet*, wallet::DatabaseBatch&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::function<wallet::DBErrors (wallet::CWallet*, DataStream&, CDataStream&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&)>) (pwallet=pwallet@entry=0x7fff2db509f0, batch=..., key="tx", load_func=...) at wallet/walletdb.cpp:523
#21 0x0000555555bf40a2 in wallet::LoadTxRecords(wallet::CWallet*, wallet::DatabaseBatch&, std::vector<uint256, std::allocator<uint256> >&, bool&)
    (pwallet=0x7fff2db509f0, batch=..., upgraded_txs=std::vector of length 0, capacity 0, any_unordered=@0x7fff417f6f9f: false) at wallet/walletdb.cpp:1021
#22 wallet::WalletBatch::LoadWallet(wallet::CWallet*) (this=0x7fff417f7208, pwallet=0x7fff2db509f0) at wallet/walletdb.cpp:1187
#23 0x0000555555bc29fd in wallet::CWallet::LoadWallet() (this=0x7fff2db509f0) at wallet/wallet.cpp:2304
#24 0x0000555555bad386 in wallet::CWallet::Create(wallet::WalletContext&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::unique_ptr<wallet::WalletDatabase, std::default_delete<wallet::WalletDatabase> >, unsigned long, bilingual_str&, std::vector<bilingual_str, std::allocator<bilingual_str> >&)
    (context=<optimized out>, name="wallet.1491854156.bak", database=std::unique_ptr<wallet::WalletDatabase> = {...}, wallet_creation_flags=0, error=..., warnings=std::vector of length 0, capacity 0) at wallet/wallet.cpp:2868
#25 0x0000555555bcf830 in wallet::MigrateLegacyToDescriptor(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, secure_allocator<char> > const&, wallet::WalletContext&) (wallet_name="wallet.1491854156.bak", passphrase="", context=...) at wallet/wallet.cpp:4169
```

### How did you obtain Bitcoin Core

Compiled from source

### What version of Bitcoin Core are you using?

current master

### Operating system and version

Linux

### Machine specifications

yes
// Add the w
            UpdateWalSetting(*context.chain, wal_name, /*load_on_stgs);
        }
        if (data->solvable_descs.size() > 0) {
            wal.WalLogPrintf("Making a new wa containing the unwatched solvable scripts\n");
            DatabaseStatus status;
            stdvector<bilingual_str> warnings;
            stdstring wal_name = wal.GetName() + "_solvables";
            data->solvable_wal = CreateWal(context, wal_name, stdnullopt, options, status, error, warnings);
            if (status != DatabaseStatusSUCCESS) {
                error = _("Error Failed to create new wa");
                return false;
            }
            res.solvables_wal = data->solvable_wal;
            LOCK(data->solvable_wal->cs_wal);
            // Parse the 
            for (const auto& [desc_str, creation_time]  data->solvable_descs) {
                // Parse the 
                FlatSigningProvider keys;
                stdstring parse_err;
                stdunique_ptr<Descriptor> desc = Parse(desc_str, keys, parse_err, /* require_c
                assert(desc); // It should
                assert(!desc->IsRange()); // It should
                // Add to th
                WalDescriptor w_desc(stdmove(desc), creation_time, 0, 0, 0);
                data->solvable_wal->AddWalDescriptor(w_desc, keys, "", 
            }
            // Add the w
            UpdateWalSetting(*context.chain, wal_name, /*load_on_stgs);
        }