$ git clone -n https://gitee.com/src-opencloudos-rpms/libotf.git /var/lib/mock/dist-oc9-build-46912-14592/root/chroot_tmpdir/scmroot/libotf
Cloning into '/var/lib/mock/dist-oc9-build-46912-14592/root/chroot_tmpdir/scmroot/libotf'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libotf
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed5a8ba import libotf-0.9.13-3.tl4