$ git clone -n https://gitee.com/src-opencloudos-rpms/syslinux.git /var/lib/mock/dist-oc9-build-131370-78526/root/chroot_tmpdir/scmroot/syslinux
Cloning into '/var/lib/mock/dist-oc9-build-131370-78526/root/chroot_tmpdir/scmroot/syslinux'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/syslinux
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d3f7f4a import syslinux-6.04-8.tl4