Unreachable code in _PyEval_EvalCode

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-05-21.06:08:42.568>
labels = ['interpreter-core', 'type-bug', '3.9', '3.10']
title = 'Unreachable code in _PyEval_EvalCode'
updated_at = <Date 2020-05-21.06:19:36.686>
user = 'https://github.com/sweeneyde'

bugs.python.org fields:

activity = <Date 2020-05-21.06:19:36.686>
actor = 'chris.jerdonek'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2020-05-21.06:08:42.568>
creator = 'Dennis Sweeney'
dependencies = []
files = []
hgrepos = []
issue_num = 40706
keywords = []
message_count = 1.0
messages = ['369498']
nosy_count = 2.0
nosy_names = ['chris.jerdonek', 'Dennis Sweeney']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue40706'
versions = ['Python 3.9', 'Python 3.10']