$ git clone -n https://src.fedoraproject.org/rpms/libircclient.git /var/lib/mock/f45-build-16392-486/root/chroot_tmpdir/scmroot/libircclient
Cloning into '/var/lib/mock/f45-build-16392-486/root/chroot_tmpdir/scmroot/libircclient'...
$ git fetch origin dec492fa80a1e900916c72031ccb16c02519a479:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libircclient
 * [new ref]         dec492fa80a1e900916c72031ccb16c02519a479 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dec492f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild