$ git clone -n https://gitee.com/src-opencloudos-rpms/syslinux.git /var/lib/mock/dist-oc9-build-60835-16463/root/chroot_tmpdir/scmroot/syslinux
Cloning into '/var/lib/mock/dist-oc9-build-60835-16463/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 f5f18b4 import syslinux-6.04-6.tl4