$ git clone -n https://src.fedoraproject.org/rpms/scotch.git /var/lib/mock/f45-build-35685-698/root/chroot_tmpdir/scmroot/scotch
Cloning into '/var/lib/mock/f45-build-35685-698/root/chroot_tmpdir/scmroot/scotch'...
$ git fetch origin ca62ab0f701178cb2d82b21c1a0c27649a227bda:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/scotch
 * [new ref]         ca62ab0f701178cb2d82b21c1a0c27649a227bda -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca62ab0 Update to 7.0.13