$ git clone -n https://gitee.com/src-opencloudos-rpms/selinux-policy.git /var/lib/mock/dist-oc8-build-67369-35305/root/chroot_tmpdir/scmroot/selinux-policy
Cloning into '/var/lib/mock/dist-oc8-build-67369-35305/root/chroot_tmpdir/scmroot/selinux-policy'...
$ git fetch origin a45aa7407b226afd46f92f0b804435c24a50c021:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/selinux-policy
 * [new ref]         a45aa7407b226afd46f92f0b804435c24a50c021 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a45aa74 import selinux-policy-3.14.3-128.tl3.2