$ git clone -n https://src.fedoraproject.org/rpms/dhcpd-pools.git /var/lib/mock/f45-build-7476-364/root/chroot_tmpdir/scmroot/dhcpd-pools
Cloning into '/var/lib/mock/f45-build-7476-364/root/chroot_tmpdir/scmroot/dhcpd-pools'...
$ git fetch origin 8e7db9c1834ac2709f81e05508c71daea4f28799:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dhcpd-pools
 * [new ref]         8e7db9c1834ac2709f81e05508c71daea4f28799 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e7db9c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild