IDLE: "restart shell" while receiving output disables program

GitHub fields:

assignee = 'https://github.com/terryjreedy'
closed_at = None
created_at = <Date 2021-10-05.19:11:17.492>
labels = ['expert-IDLE', 'type-bug', '3.11']
title = 'IDLE: "restart shell" while receiving output disables program'
updated_at = <Date 2021-10-06.02:20:00.261>
user = 'https://bugs.python.org/capsicumw'

bugs.python.org fields:

activity = <Date 2021-10-06.02:20:00.261>
actor = 'terry.reedy'
assignee = 'terry.reedy'
closed = False
closed_date = None
closer = None
components = ['IDLE']
creation = <Date 2021-10-05.19:11:17.492>
creator = 'capsicumw'
dependencies = []
files = []
hgrepos = []
issue_num = 45381
keywords = []
message_count = 2.0
messages = ['403259', '403284']
nosy_count = 3.0
nosy_names = ['terry.reedy', 'taleinat', 'capsicumw']
pr_nums = []
priority = 'normal'
resolution = None
stage = 'needs patch'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue45381'
versions = ['Python 3.11']