email.utils.getaddresses improper parsing of unicode realnames

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-12-30.16:01:24.999>
labels = ['type-feature', 'expert-email', '3.9']
title = 'email.utils.getaddresses improper parsing of unicode realnames'
updated_at = <Date 2020-12-30.16:47:32.474>
user = 'https://bugs.python.org/konstantin2'

bugs.python.org fields:

activity = <Date 2020-12-30.16:47:32.474>
actor = 'trrhodes'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['email']
creation = <Date 2020-12-30.16:01:24.999>
creator = 'konstantin2'
dependencies = []
files = []
hgrepos = []
issue_num = 42787
keywords = []
message_count = 2.0
messages = ['384069', '384071']
nosy_count = 4.0
nosy_names = ['barry', 'r.david.murray', 'trrhodes', 'konstantin2']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue42787'
versions = ['Python 3.9']