$ git clone -n https://src.fedoraproject.org/rpms/golang-github-jcmturner-rpc-2.git /var/lib/mock/f38-build-side-42-init-devel-1052110-29763/root/chroot_tmpdir/scmroot/golang-github-jcmturner-rpc-2
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1052110-29763/root/chroot_tmpdir/scmroot/golang-github-jcmturner-rpc-2'...
$ git fetch origin 32a9c8867ac402d12fd9ab5fafa911293d9ef54b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-jcmturner-rpc-2
 * [new ref]         32a9c8867ac402d12fd9ab5fafa911293d9ef54b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 32a9c88 Added the README