$ git clone -n https://gitee.com/src-opencloudos-rpms/gnutls.git /var/lib/mock/dist-oc9-build-41431-14591/root/chroot_tmpdir/scmroot/gnutls
Cloning into '/var/lib/mock/dist-oc9-build-41431-14591/root/chroot_tmpdir/scmroot/gnutls'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gnutls
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f85c41a import gnutls-3.7.6-4.tl4