Wrap requests in InvokeWithoutUpdatesRequest if no event handlers

Closes #1270.

telethon/client/users.py

@@ -51,6 +51,9 @@ class UserMethods:
                 else:
                     raise errors.FloodWaitError(request=r, capture=diff)
 
+            if not self._event_builders and not self._conversations:
+                r = functions.InvokeWithoutUpdatesRequest(r)
+
         request_index = 0
         last_error = None
         self._last_request = time.time()

telethon/events/callbackquery.py

@@ -135,7 +135,7 @@ class CallbackQuery(EventBuilder):
                 The object returned by the ``data=`` parameter
                 when creating the event builder, if any. Similar
                 to ``pattern_match`` for the new message event.
-            
+
             pattern_match (`obj`, optional):
                 Alias for ``data_match``.
         """