$ git clone -n https://src.fedoraproject.org/rpms/file.git /var/lib/mock/f31-build-66739-29928/root/chroot_tmpdir/scmroot/file
Cloning into '/var/lib/mock/f31-build-66739-29928/root/chroot_tmpdir/scmroot/file'...
$ git reset --hard 807e236b9643e57f1882e7edfbe3fdd4188cfd53
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Checking out files: 100% (854/854)   
Checking out files: 100% (854/854), done.
HEAD is now at 807e236 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild