GH-117546: Fix symlink resolution in os.path.realpath('loop/../link')
#117568
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Continue resolving symlink targets after encountering a symlink loop, which matches coreutils
realpath
behaviour. POSIX-only fix; Windows works differently.os.path.realpath('loop/../link')
does not resolve link #117546📚 Documentation preview 📚: https://cpython-previews--117568.org.readthedocs.build/