Check for user or host being `None` in `mysql_users` fact.
@@ -120,7 +120,7 @@ class MysqlUsers(MysqlFactBase):
users = {}
for details in rows:
- if 'Host' not in details or 'User' not in details:
+ if details.get('Host') is None or details.get('User') is None:
continue
privileges = []
