$ git clone -n https://src.fedoraproject.org/rpms/lxc.git /var/lib/mock/f40-build-795116-139928/root/chroot_tmpdir/scmroot/lxc
Cloning into '/var/lib/mock/f40-build-795116-139928/root/chroot_tmpdir/scmroot/lxc'...
$ git fetch origin 4bf562c6eb887a028f1d57bab6f4c9b543f24c9b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lxc
 * [new ref]         4bf562c6eb887a028f1d57bab6f4c9b543f24c9b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4bf562c Update lxc to 5.0.3