$ git clone -n https://src.fedoraproject.org/rpms/parallel.git /var/lib/mock/f45-build-21373-584/root/chroot_tmpdir/scmroot/parallel
Cloning into '/var/lib/mock/f45-build-21373-584/root/chroot_tmpdir/scmroot/parallel'...
$ git fetch origin ad174ab1058a222ffa71e67fe6919b60524af1fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/parallel
 * [new ref]         ad174ab1058a222ffa71e67fe6919b60524af1fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ad174ab enable packit only for rawhide