Email does not apply policy to multipart messages with defects

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-04-12.20:17:28.769>
labels = ['3.8', 'expert-email']
title = 'Email does not apply policy to multipart messages with defects'
updated_at = <Date 2022-03-28.19:43:44.147>
user = 'https://github.com/jishac'

bugs.python.org fields:

activity = <Date 2022-03-28.19:43:44.147>
actor = 'mdengler'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['email']
creation = <Date 2021-04-12.20:17:28.769>
creator = 'jishac'
dependencies = []
files = ['49955']
hgrepos = []
issue_num = 43818
keywords = []
message_count = 2.0
messages = ['390897', '416204']
nosy_count = 4.0
nosy_names = ['barry', 'r.david.murray', 'mdengler', 'jishac']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue43818'
versions = ['Python 3.8']