$ git clone -n https://gitee.com/src-opencloudos-rpms/nss.git /var/lib/mock/dist-oc9-build-72599-47996/root/chroot_tmpdir/scmroot/nss
Cloning into '/var/lib/mock/dist-oc9-build-72599-47996/root/chroot_tmpdir/scmroot/nss'...
$ git fetch origin 3d068ff6e1db712caad534d54f08f3c96516a4aa:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/nss
 * [new ref]         3d068ff6e1db712caad534d54f08f3c96516a4aa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d068ff import nss-3.93-4.tl4