$ git clone -n https://src.fedoraproject.org/rpms/trurl.git /var/lib/mock/f40-build-2225110-52806/root/chroot_tmpdir/scmroot/trurl
Cloning into '/var/lib/mock/f40-build-2225110-52806/root/chroot_tmpdir/scmroot/trurl'...
$ git fetch origin c5bb18ceeb0f651c06bcdd957627dd8c74661441:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/trurl
 * [new ref]         c5bb18ceeb0f651c06bcdd957627dd8c74661441 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c5bb18c Update to 0.9 (rhbz#2247577)