$ git clone -n https://src.fedoraproject.org/rpms/PyYAML.git /var/lib/mock/f31-build-73509-30990/root/chroot_tmpdir/scmroot/PyYAML
Cloning into '/var/lib/mock/f31-build-73509-30990/root/chroot_tmpdir/scmroot/PyYAML'...
$ git reset --hard c9806f7c7fc06ec89eabbc9a1e0a78de4057e51a
HEAD is now at c9806f7 New upstream release 5.1.2