From 899228904a98c3e8d0b337406387be3f2cedf154 Mon Sep 17 00:00:00 2001
From: alfred richardsn <rchrdsn@protonmail.ch>
Date: Mon, 5 Jul 2021 22:12:52 +0000
Subject: [PATCH] Fix unused default locale in I18nMiddleware (#562) (#563)

Co-authored-by: Alex Root Junior <jroot.junior@gmail.com>
---
 aiogram/contrib/middlewares/i18n.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/aiogram/contrib/middlewares/i18n.py b/aiogram/contrib/middlewares/i18n.py
index 651b77de..1c50a603 100644
--- a/aiogram/contrib/middlewares/i18n.py
+++ b/aiogram/contrib/middlewares/i18n.py
@@ -132,11 +132,11 @@ class I18nMiddleware(BaseMiddleware):
         user: Optional[types.User] = types.User.get_current()
         locale: Optional[Locale] = user.locale if user else None
 
-        if locale:
+        if locale and locale.language in self.locales:
             *_, data = args
             language = data['locale'] = locale.language
             return language
-        return None
+        return self.default
 
     async def trigger(self, action, args):
         """