Opening two of the same wallet (tested in v0.18.0 of bitcoin-qt 64 bit) will cause a database collision, and will crash the program.

`[marshall@likon] {21:21} [~] $ bitcoin-0.18.0/bin/bitcoin-qt `
`terminate called after throwing an instance of 'std::runtime_error'  what():  BerkeleyBatch: Can't open database 8204388-wallet.dat (duplicates fileid 8b1c090000000800e25686350000000000000000 from 1352491-wallet.dat)`
`Aborted (core dumped)`

I have been able to reproduce the issue by importing two of the same wallet (with different filenames).
encrypted_batch = nullptr;
            
            
            assert(false);
        }
        delete encrypted_batch;
        encrypted_batch = nullptr;
        Lock();
        Unlock(strWalletPassphrase);
        
        if (auto spk_man = GetLegacyScriptPubKeyMan()) {
            if (spk_man->IsHDEnabled()) {
                if (!spk_man->SetupGeneration(true)) {
                    return false;
                }
            }
        }
        Lock();
        
        
        database->Rewrite();
        
        
        
        database->ReloadDbEnv();
    }
    NotifyStatusChanged(this);
    return true;
}
DBErrors CWallet::ReorderTransactions()