[issue44687] io.BufferedReader:peek() closes underlying file, breaking peek/read expectations

[Steve Dower]

Steve Dower <steve.dower at python.org> added the comment:

That change makes me much happier :)

Do you think we need a specific test added for this case? I'd guess we have plenty of coverage for the changed macro already, but clearly nothing that showed the issue before.

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<https://bugs.python.org/issue44687>
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