pystate.c:_PyCrossInterpreterData_Release() does not clear py exception on error

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-07-25.15:27:05.597>
labels = ['interpreter-core', 'type-bug', '3.8']
title = 'pystate.c:_PyCrossInterpreterData_Release() does not clear py exception on error'
updated_at = <Date 2021-11-23.17:28:26.844>
user = 'https://bugs.python.org/TomaszPytel'

bugs.python.org fields:

activity = <Date 2021-11-23.17:28:26.844>
actor = 'iritkatriel'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2020-07-25.15:27:05.597>
creator = 'Tomasz Pytel'
dependencies = []
files = []
hgrepos = []
issue_num = 41396
keywords = []
message_count = 1.0
messages = ['374270']
nosy_count = 3.0
nosy_names = ['vstinner', 'eric.snow', 'Tomasz Pytel']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue41396'
versions = ['Python 3.8']