setuptools: MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) on macOS APFS/HFS+

Summary When building a source distribution python -m build --sdist / setup.py sdist, setuptools' FileList applies MANIFEST.in directives exclude, global-exclude, recursive-exclude, prune by matching a compiled glob against on-disk file names byte-for-byte, with no Unicode normalization. On...