$ git clone -n https://gitee.com/src-opencloudos-rpms/nss.git /var/lib/mock/dist-oc8-build-237638-82447/root/chroot_tmpdir/scmroot/nss
Cloning into '/var/lib/mock/dist-oc8-build-237638-82447/root/chroot_tmpdir/scmroot/nss'...
$ git fetch origin c6231cec85b5d95d454758a25d55e524e246fb5a:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/nss
 * [new ref]         c6231cec85b5d95d454758a25d55e524e246fb5a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6231ce import nss-3.112.0-8.tl3