When you open wallets with exotic names, i.e `🦹🏿‍♂️` (Emoji Version 11), via the "Open Wallet" menu, the opening wallet dialog never closes, even after the wallet has finished loading.

![screen shot 2019-02-21 at 2 34 06 pm](https://user-images.githubusercontent.com/863730/53148554-012d3180-35e6-11e9-8a94-62c5fb023d40.png)

{
    assert(!m_wallet_controller);
    assert(wallet_controller);
    m_wallet_controller = wallet_controller;
    connect(wallet_controller, &WalletController::walletAdded, this, &BitcoinGUI::addWallet);
    connect(wallet_controller, &WalletController::walletRemoved, this, &BitcoinGUI::removeWallet);
    for (WalletModel* wallet_model : m_wallet_controller->getWallets()) {
        addWallet(wallet_model);
    }
}
void BitcoinGUI::addWallet(WalletModel* walletModel)