$ git clone -n https://src.fedoraproject.org/rpms/golang-github-softlayer-xmlrpc.git /var/lib/mock/f38-build-side-42-init-devel-1407297-31300/root/chroot_tmpdir/scmroot/golang-github-softlayer-xmlrpc
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1407297-31300/root/chroot_tmpdir/scmroot/golang-github-softlayer-xmlrpc'...
$ git fetch origin d54b382b507e3fad083d6b708baadb4882407b55:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-softlayer-xmlrpc
 * [new ref]         d54b382b507e3fad083d6b708baadb4882407b55 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d54b382 Initial import