gui: disable File->CreateWallet during startup

Author: fanquake

src/qt/bitcoingui.cpp

@@ -341,6 +341,7 @@ void BitcoinGUI::createActions()
     m_close_wallet_action->setStatusTip(tr("Close wallet"));
 
     m_create_wallet_action = new QAction(tr("Create Wallet..."), this);
+    m_create_wallet_action->setEnabled(false);
     m_create_wallet_action->setStatusTip(tr("Create a new wallet"));
 
     showHelpMessageAction = new QAction(tr("&Command-line options"), this);
@@ -618,6 +619,7 @@ void BitcoinGUI::setWalletController(WalletController* wallet_controller)
 
     m_wallet_controller = wallet_controller;
 
+    m_create_wallet_action->setEnabled(true);
     m_open_wallet_action->setEnabled(true);
     m_open_wallet_action->setMenu(m_open_wallet_menu);