Steps:
1. Send transaction (A) to a different wallet
2. Using the change, create another transaction (B) to a different wallet
3. `abandontransaction` B
4. `bumpfee` A fails with `Transaction has descendants in the wallet`
void UnloadWallet(stdshared_ptr<CWallet>&& )
{
    
    const stdstring name = ->GetName();
    {
        LOCK(g__release_mutex);
        auto it = g_unloading__set.insert(name);
        assert(it.second);
    }
    
    
    
    ->NotifyUnload();
    
    .reset();
    {
        WAIT_LOCK(g__release_mutex, lock);
        while (g_unloading__set.count(name) == 1) {
            g__release_cv.wait(lock);
        }
    }
}
 {
stdshared_ptr<CWallet> LoadWalletInternal(WalletContext& context, const stdstring& name, stdoptional<bool> load_on_start, const DatabaseOptions& options, DatabaseStatus& status, bilingual_str& error, stdvector<bilingual_str>& warnings)
{
    try {
        stdunique_ptr<WalletDatabase> database = MakeWalletDatabase(name, options, status, error);
        if (!database) {
            error = Untranslated("Wallet file verification failed.") + Untranslated(" ") + error;
            return nullptr;