pkgutil.extend_path fails with zipped eggs if not at first place

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2019-10-31.11:28:28.076>
labels = ['3.7', 'type-bug', 'library']
title = 'pkgutil.extend_path fails with zipped eggs if not at first place'
updated_at = <Date 2019-11-02.22:15:31.791>
user = 'https://bugs.python.org/htgoebel'

bugs.python.org fields:

activity = <Date 2019-11-02.22:15:31.791>
actor = 'lkollar'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2019-10-31.11:28:28.076>
creator = 'htgoebel'
dependencies = []
files = []
hgrepos = []
issue_num = 38653
keywords = []
message_count = 1.0
messages = ['355745']
nosy_count = 2.0
nosy_names = ['htgoebel', 'lkollar']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue38653'
versions = ['Python 2.7', 'Python 3.7']