qml: (clarity) use separate slots for sign and sign_and_broadcast.

electrum/gui/qml/components/TxDetails.qml

@@ -460,11 +460,10 @@ Pane {
                 wallet: Daemon.currentWallet
                 txid: dialog.txid
             }
-
             onTxaccepted: {
                 root.rawtx = rbffeebumper.getNewTx()
                 if (txdetails.wallet.canSignWithoutCosigner) {
-                    txdetails.sign(true)
+                    txdetails.sign_and_broadcast()
                     // close txdetails?
                 } else {
                     var dialog = app.messageDialog.createObject(app, {
@@ -491,7 +490,7 @@ Pane {
                 // replaces parent tx with cpfp tx
                 root.rawtx = cpfpfeebumper.getNewTx()
                 if (txdetails.wallet.canSignWithoutCosigner) {
-                    txdetails.sign(true)
+                    txdetails.sign_and_broadcast()
                     // close txdetails?
                 } else {
                     var dialog = app.messageDialog.createObject(app, {
@@ -517,7 +516,7 @@ Pane {
             onTxaccepted: {
                 root.rawtx = txcanceller.getNewTx()
                 if (txdetails.wallet.canSignWithoutCosigner) {
-                    txdetails.sign(true)
+                    txdetails.sign_and_broadcast()
                     // close txdetails?
                 } else {
                     var dialog = app.messageDialog.createObject(app, {

electrum/gui/qml/qetxdetails.py

@@ -299,8 +299,14 @@ class QETxDetails(QObject, QtEventListener):
         self._short_id = tx_mined_info.short_id() or ""
 
     @pyqtSlot()
-    @pyqtSlot(bool)
+    def sign_and_broadcast(self):
-    def sign(self, broadcast = False):
+        self._sign(broadcast=True)
+
+    @pyqtSlot()
+    def sign(self):
+        self._sign(broadcast=False)
+
+    def _sign(self, broadcast):
         # TODO: connecting/disconnecting signal handlers here is hmm
         try:
             self._wallet.transactionSigned.disconnect(self.onSigned)