SCOPES must be the same to refresh

Author: arne182

general/gmail-api/common.py

@@ -19,7 +19,7 @@ def gmail_authenticate():
             creds = pickle.load(token)
     # if there are no (valid) credentials availablle, let the user log in.
     if not creds or not creds.valid:
-        if creds and creds.expired and creds.refresh_token:
+        if creds and creds.expired and creds.refresh_token and SCOPES == creds._scopes::
             creds.refresh(Request())
         else:
             flow = InstalledAppFlow.from_client_secrets_file('credentials.json', SCOPES)
@@ -40,4 +40,4 @@ def search_messages(service, query):
         result = service.users().messages().list(userId='me',q=query, pageToken=page_token).execute()
         if 'messages' in result:
             messages.extend(result['messages'])
-    return messages
+    return messages