$ git clone -n https://gitee.com/src-opencloudos-rpms/libmad.git /var/lib/mock/dist-oc9-build-70393-47428/root/chroot_tmpdir/scmroot/libmad
Cloning into '/var/lib/mock/dist-oc9-build-70393-47428/root/chroot_tmpdir/scmroot/libmad'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libmad
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e38a5bd import libmad-0.15.1b-4.tl4