Fix disconnect handler callback being called on every session

delivrance · delivrance · commit c7d60ef8a69e · 2018-06-24T19:29:12.000+02:00
diff --git a/pyrogram/session/session.py b/pyrogram/session/session.py
@@ -197,7 +197,7 @@ def stop(self):
         for i in self.results.values():
             i.event.set()
 
-        if self.client and callable(self.client.disconnect_handler):
+        if not self.is_media and callable(self.client.disconnect_handler):
             try:
                 self.client.disconnect_handler(self.client)
             except Exception as e:
