Fix PicklePersistence.flush() with only bot_data (python-telegram-bot#2017)

Bibo-Joshi · web-flow · commit ff4bb15fefe4 · 2020-07-10T11:10:53.000+02:00
diff --git a/telegram/ext/picklepersistence.py b/telegram/ext/picklepersistence.py
@@ -277,7 +277,7 @@ def flush(self):
         """ Will save all data in memory to pickle file(s).
         """
         if self.single_file:
-            if self.user_data or self.chat_data or self.conversations:
+            if self.user_data or self.chat_data or self.bot_data or self.conversations:
                 self.dump_singlefile()
         else:
             if self.user_data:
