$ git clone -n https://gitee.com/ocs-bot/selinux-policy.git /var/lib/mock/dist-ocs23-build-172242-10545/root/chroot_tmpdir/scmroot/selinux-policy
Cloning into '/var/lib/mock/dist-ocs23-build-172242-10545/root/chroot_tmpdir/scmroot/selinux-policy'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/ocs-bot/selinux-policy
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 237644d Upgrade to version 40.20