properly remember wallet password and pass to tx signing call

electrum/gui/qml/qedaemon.py

@@ -161,7 +161,9 @@ class QEDaemon(AuthMixin, QObject):
         if not password:
             password = self._password
 
-        if self._path not in self.daemon._wallets:
+        wallet_already_open = self._path in self.daemon._wallets
+
+        if not wallet_already_open:
             # pre-checks, let walletdb trigger any necessary user interactions
             self._walletdb.path = self._path
             self._walletdb.password = password
@@ -172,9 +174,10 @@ class QEDaemon(AuthMixin, QObject):
         try:
             wallet = self.daemon.load_wallet(self._path, password)
             if wallet != None:
-                self._loaded_wallets.add_wallet(wallet_path=self._path, wallet=wallet)
                 self._current_wallet = QEWallet.getInstanceFor(wallet)
-                self._current_wallet.password = password
+                if not wallet_already_open:
+                    self._loaded_wallets.add_wallet(wallet_path=self._path, wallet=wallet)
+                    self._current_wallet.password = password
                 self.walletLoaded.emit()
 
                 if self.daemon.config.get('single_password'):

electrum/gui/qml/qewallet.py

@@ -554,7 +554,10 @@ class QEWallet(AuthMixin, QObject, QtEventListener):
                 addr = None
                 if self.wallet.config.get('bolt11_fallback', True):
                     addr = self.wallet.get_unused_address()
-                    # if addr is None, we ran out of addresses. for lightning enabled wallets, ignore for now
+                    # if addr is None, we ran out of addresses
+                    if addr is None:
+                        # TODO: remove oldest unpaid request having a fallback address and try again
+                        pass
                 key = self.wallet.create_request(None, None, default_expiry, addr)
             else:
                 key, addr = self.create_bitcoin_request(None, None, default_expiry, ignore_gap)