Inconsistent/incomplete disassembly of methods vs method source code

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-02-29.15:27:53.790>
labels = ['3.7', 'type-bug', 'library']
title = 'Inconsistent/incomplete disassembly of methods vs method source code'
updated_at = <Date 2020-03-01.06:58:53.787>
user = 'https://github.com/sr-murthy'

bugs.python.org fields:

activity = <Date 2020-03-01.06:58:53.787>
actor = 'smurthy'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2020-02-29.15:27:53.790>
creator = 'smurthy'
dependencies = []
files = []
hgrepos = []
issue_num = 39800
keywords = []
message_count = 7.0
messages = ['362985', '362989', '362995', '362997', '363040', '363042', '363043']
nosy_count = 2.0
nosy_names = ['steven.daprano', 'smurthy']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue39800'
versions = ['Python 3.7']