[issue40654] shutil.copyfile mutates symlink for absolute path

[Jason R. Coombs]

Jason R. Coombs <jaraco at jaraco.com> added the comment:

Perhaps related, I've encountered another apparent regression on Python 3.8 on Windows when the current working directory is in a symlink to another volume and one runs `setup.py develop` on a project using setuptools_scm (https://github.com/pypa/setuptools_scm/issues/436).

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