PyObject_GetAttrString and tp_getattr do not agree

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-02-13.03:23:38.855>
labels = ['expert-C-API', 'type-feature']
title = 'PyObject_GetAttrString and tp_getattr do not agree'
updated_at = <Date 2021-06-22.14:42:14.566>
user = 'https://github.com/petdance'

bugs.python.org fields:

activity = <Date 2021-06-22.14:42:14.566>
actor = 'petr.viktorin'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['C API']
creation = <Date 2020-02-13.03:23:38.855>
creator = 'petdance'
dependencies = []
files = []
hgrepos = []
issue_num = 39620
keywords = []
message_count = 4.0
messages = ['361929', '361930', '361931', '361936']
nosy_count = 5.0
nosy_names = ['loewis', 'petr.viktorin', 'serhiy.storchaka', 'ammar2', 'petdance']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue39620'
versions = []