$ git clone -n https://gitee.com/src-opencloudos-rpms/nfs-utils.git /var/lib/mock/dist-oc9-build-121176-71577/root/chroot_tmpdir/scmroot/nfs-utils
Cloning into '/var/lib/mock/dist-oc9-build-121176-71577/root/chroot_tmpdir/scmroot/nfs-utils'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/nfs-utils
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3797f22 import nfs-utils-2.6.3-6.tl4