$ git clone -n https://src.fedoraproject.org/rpms/python-cpio.git /var/lib/mock/f45-build-30133-643/root/chroot_tmpdir/scmroot/python-cpio
Cloning into '/var/lib/mock/f45-build-30133-643/root/chroot_tmpdir/scmroot/python-cpio'...
$ git fetch origin f28cec55c284c183c8ba1715c7eb2fd1d0dc389a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-cpio
 * [new ref]         f28cec55c284c183c8ba1715c7eb2fd1d0dc389a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f28cec5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild