[Windows] Hang on startup if stdin refers to a pipe with an outstanding concurrent operation on Windows

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2018-09-23.20:00:35.593>
labels = ['type-bug', '3.8', '3.9', 'expert-IO', '3.10', 'OS-windows']
title = '[Windows] Hang on startup if stdin refers to a pipe with an outstanding concurrent operation on Windows'
updated_at = <Date 2021-03-12.21:40:42.549>
user = 'https://github.com/izbyshev'

bugs.python.org fields:

activity = <Date 2021-03-12.21:40:42.549>
actor = 'vstinner'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Windows', 'IO']
creation = <Date 2018-09-23.20:00:35.593>
creator = 'izbyshev'
dependencies = []
files = []
hgrepos = []
issue_num = 34780
keywords = ['patch']
message_count = 5.0
messages = ['326175', '326201', '327802', '388548', '388549']
nosy_count = 6.0
nosy_names = ['paul.moore', 'tim.golden', 'zach.ware', 'eryksun', 'steve.dower', 'izbyshev']
pr_nums = ['9520']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue34780'
versions = ['Python 3.8', 'Python 3.9', 'Python 3.10']