$ git clone -n https://gitee.com/src-opencloudos-rpms/realmd.git /var/lib/mock/dist-oc9-build-122360-71954/root/chroot_tmpdir/scmroot/realmd
Cloning into '/var/lib/mock/dist-oc9-build-122360-71954/root/chroot_tmpdir/scmroot/realmd'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/realmd
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a00ee1 import realmd-0.17.1-4.tl4.1