nodemap: add a test about racy commit during stream clone That test show that the resulting client nodemap is different from the server one. This happens because the server one transferred a corrupted node map. The data file match the pre-commit content while the docket has post commit content. As the result the nodemap was detected invalid and recomputed. When running without the rust implementation, the code is also generating a new datafile unconditionally, This mean the older file is no longer there are transfer time, resulting in a crash. We will fix this issue later, but we start with writing tests highlighting the issue. Differential Revision: https://phab.mercurial-scm.org/D10479

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[build-system]

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requires = ["setuptools", "wheel"]

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build-backend = "setuptools.build_meta"

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[tool.black]

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line-length = 80

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exclude = '''

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build/

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| wheelhouse/

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| dist/

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| packages/

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| \.hg/

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| \.mypy_cache/

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| \.venv/

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| mercurial/thirdparty/

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'''

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skip-string-normalization = true

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quiet = true