[issue45566] `test_frozen_pickle` does not use all possible `pickle` protocols

[Nikita Sobolev]

Change by Nikita Sobolev <mail at sobolevn.me>:


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keywords: +patch
pull_requests: +27427
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/29150

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue45566>
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