$ git clone -n https://src.fedoraproject.org/rpms/sharutils.git /var/lib/mock/f45-build-35932-700/root/chroot_tmpdir/scmroot/sharutils
Cloning into '/var/lib/mock/f45-build-35932-700/root/chroot_tmpdir/scmroot/sharutils'...
$ git fetch origin bb08e72071053b5deed473e40f54d6bd32e28ac3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sharutils
 * [new ref]         bb08e72071053b5deed473e40f54d6bd32e28ac3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb08e72 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild