wsgiref simple_server PATH_INFO treats slashes and %2F the same

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2016-10-04.11:57:43.516>
labels = ['type-bug']
title = 'wsgiref simple_server PATH_INFO treats slashes and %2F the same'
updated_at = <Date 2016-10-06.15:12:04.950>
user = 'https://bugs.python.org/tdammers'

bugs.python.org fields:

activity = <Date 2016-10-06.15:12:04.950>
actor = 'ned.deily'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2016-10-04.11:57:43.516>
creator = 'tdammers'
dependencies = []
files = []
hgrepos = []
issue_num = 28355
keywords = []
message_count = 1.0
messages = ['278032']
nosy_count = 2.0
nosy_names = ['pje', 'tdammers']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue28355'
versions = ['Python 3.4']