Logical error fixed

When selected_language_code was not a field of `user` table, it was 
never added

davtelepot/__init__.py

@@ -14,7 +14,7 @@ __author__ = "Davide Testa"
 __email__ = "davide@davte.it"
 __credits__ = ["Marco Origlia", "Nick Lee @Nickoala"]
 __license__ = "GNU General Public License v3.0"
-__version__ = "2.1.19"
+__version__ = "2.1.20"
 __maintainer__ = "Davide Testa"
 __contact__ = "t.me/davte"
 

davtelepot/languages.py

@@ -223,8 +223,8 @@ async def _language_button(bot, update, user_record, data):
             return
         # If database-stored information is not updated, update it
         if (
-            'selected_language_code' in user_record
-            and data[1] != user_record['selected_language_code']
+            'selected_language_code' not in user_record
+            or data[1] != user_record['selected_language_code']
         ):
             with bot.db as db:
                 db['users'].update(