Bogus cookie generated after invalid cookie attribute is input

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-10-03.22:03:46.430>
labels = ['type-bug', 'library', '3.11']
title = 'Bogus cookie generated after invalid cookie attribute is input'
updated_at = <Date 2021-10-04.22:04:49.610>
user = 'https://github.com/glubsy'

bugs.python.org fields:

activity = <Date 2021-10-04.22:04:49.610>
actor = 'greob'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2021-10-03.22:03:46.430>
creator = 'greob'
dependencies = []
files = []
hgrepos = []
issue_num = 45358
keywords = ['patch']
message_count = 1.0
messages = ['403114']
nosy_count = 1.0
nosy_names = ['greob']
pr_nums = ['28726']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue45358'
versions = ['Python 3.11']