$ git clone -n https://gitee.com/src-opencloudos-rpms/docbook5-schemas.git /var/lib/mock/dist-oc9-build-41002-14591/root/chroot_tmpdir/scmroot/docbook5-schemas
Cloning into '/var/lib/mock/dist-oc9-build-41002-14591/root/chroot_tmpdir/scmroot/docbook5-schemas'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/docbook5-schemas
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2d7a2b import docbook5-schemas-5.1-3.tl4