$ git clone -n https://src.fedoraproject.org/rpms/libdjbsort.git /var/lib/mock/f45-build-16048-481/root/chroot_tmpdir/scmroot/libdjbsort
Cloning into '/var/lib/mock/f45-build-16048-481/root/chroot_tmpdir/scmroot/libdjbsort'...
$ git fetch origin 128a8333423ca79bc1f4ad6a164fafc23437a031:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libdjbsort
 * [new ref]         128a8333423ca79bc1f4ad6a164fafc23437a031 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 128a833 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild