__module__ attribute is not set correctly for a class created by direct metaclass call

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2016-12-04.21:09:34.786>
labels = ['interpreter-core', '3.8', 'type-bug', '3.7', '3.9']
title = '__module__ attribute is not set correctly for a class created by direct metaclass call'
updated_at = <Date 2019-10-13.11:03:48.103>
user = 'https://github.com/ilevkivskyi'

bugs.python.org fields:

activity = <Date 2019-10-13.11:03:48.103>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2016-12-04.21:09:34.786>
creator = 'levkivskyi'
dependencies = []
files = []
hgrepos = []
issue_num = 28869
keywords = ['patch']
message_count = 20.0
messages = ['282363', '282365', '282367', '282369', '282378', '345073', '345226', '345328', '345332', '345770', '345772', '345797', '345889', '345945', '348210', '348234', '348312', '354071', '354263', '354573']
nosy_count = 6.0
nosy_names = ['steven.daprano', 'serhiy.storchaka', 'levkivskyi', 'abarry', 'hongweipeng', 'alegonz']
pr_nums = ['14126', '14166', '16613']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue28869'
versions = ['Python 3.7', 'Python 3.8', 'Python 3.9']