$ git clone -n https://gitee.com/src-opencloudos-rpms/selinux-policy.git /var/lib/mock/dist-oc9-build-73895-49205/root/chroot_tmpdir/scmroot/selinux-policy
Cloning into '/var/lib/mock/dist-oc9-build-73895-49205/root/chroot_tmpdir/scmroot/selinux-policy'...
$ git fetch origin fbcec6ccf880979128d53ac7b13e715c019c5c88:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/selinux-policy
 * [new ref]         fbcec6ccf880979128d53ac7b13e715c019c5c88 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fbcec6c import selinux-policy-40.9-2.tl4.1