Language reference does not clearly describe modern operand coercion

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-01-11.08:41:52.195>
labels = ['type-feature', '3.8', '3.9']
title = 'Language reference does not clearly describe modern operand coercion'
updated_at = <Date 2020-01-11.08:41:52.195>
user = 'https://github.com/ncoghlan'

bugs.python.org fields:

activity = <Date 2020-01-11.08:41:52.195>
actor = 'ncoghlan'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2020-01-11.08:41:52.195>
creator = 'ncoghlan'
dependencies = []
files = []
hgrepos = []
issue_num = 39302
keywords = []
message_count = 1.0
messages = ['359788']
nosy_count = 1.0
nosy_names = ['ncoghlan']
pr_nums = []
priority = 'normal'
resolution = None
stage = 'needs patch'
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue39302'
versions = ['Python 3.8', 'Python 3.9']