synchronizer: fix refresh bug

electrum/address_synchronizer.py

@@ -643,6 +643,8 @@ class AddressSynchronizer(PrintError):
     def set_up_to_date(self, up_to_date):
         with self.lock:
             self.up_to_date = up_to_date
+        if self.network:
+            self.network.notify('status')
         if up_to_date:
             self.save_transactions(write=True)
             # if the verifier is also up to date, persist that too;

electrum/network.py

@@ -308,7 +308,8 @@ class Network(PrintError):
         self.notify('status')
 
     def is_connected(self):
-        return self.interface is not None and self.interface.ready.done()
+        interface = self.interface
+        return interface is not None and interface.ready.done()
 
     def is_connecting(self):
         return self.connection_status == 'connecting'

electrum/synchronizer.py

@@ -160,6 +160,7 @@ class Synchronizer(PrintError):
         return s
 
     async def main(self):
+        self.wallet.set_up_to_date(False)
         # request missing txns, if any
         async with TaskGroup() as group:
             for history in self.wallet.history.values():