Escape ampersands (&) in wallet names in Open Wallet menu

src/qt/bitcoingui.cpp

@@ -375,6 +375,8 @@ void BitcoinGUI::createActions()
             for (const std::pair<const std::string, bool>& i : m_wallet_controller->listWalletDir()) {
                 const std::string& path = i.first;
                 QString name = path.empty() ? QString("["+tr("default wallet")+"]") : QString::fromStdString(path);
+                // Menu items remove single &. Single & are shown when && is in the string, but only the first occurrence. So replace only the first & with &&
+                name.replace(name.indexOf(QChar('&')), 1, QString("&&"));
                 QAction* action = m_open_wallet_menu->addAction(name);
 
                 if (i.second) {