$ git clone -n https://src.fedoraproject.org/rpms/cld2.git /var/lib/mock/f45-build-4477-332/root/chroot_tmpdir/scmroot/cld2
Cloning into '/var/lib/mock/f45-build-4477-332/root/chroot_tmpdir/scmroot/cld2'...
$ git fetch origin 7b644193ad9aa2a7f94b91c9f4ead387fa21931a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cld2
 * [new ref]         7b644193ad9aa2a7f94b91c9f4ead387fa21931a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b64419 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild