qml: fixes

electrum/gui/qml/components/Send.qml

@@ -297,8 +297,9 @@ Pane {
                             'satoshis': invoice.amount,
                             'message': invoice.message
                     })
+                    var wo = Daemon.currentWallet.isWatchOnly
                     dialog.txaccepted.connect(function() {
-                        if (Daemon.currentWallet.isWatchOnly) {
+                        if (wo) {
                             showUnsignedTx(dialog.finalizer.serializedTx())
                         } else {
                             dialog.finalizer.send_onchain()

electrum/gui/qml/qetxfinalizer.py

@@ -309,7 +309,7 @@ class QETxFinalizer(QObject):
             self.f_accept(self._tx)
             return
 
-        self._wallet.sign_and_broadcast(self._tx)
+        self._wallet.sign(self._tx, broadcast=True)
 
     @pyqtSlot(result=str)
     def serializedTx(self):