$ git clone -n https://src.fedoraproject.org/rpms/liblrdf.git /var/lib/mock/f45-build-16520-487/root/chroot_tmpdir/scmroot/liblrdf
Cloning into '/var/lib/mock/f45-build-16520-487/root/chroot_tmpdir/scmroot/liblrdf'...
$ git fetch origin cc03c83d8275b064b1082708a0de960bf459a61b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/liblrdf
 * [new ref]         cc03c83d8275b064b1082708a0de960bf459a61b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cc03c83 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild