$ git clone -n https://gitee.com/src-opencloudos-rpms/docbook2X.git /var/lib/mock/dist-oc9-build-48630-14595/root/chroot_tmpdir/scmroot/docbook2X
Cloning into '/var/lib/mock/dist-oc9-build-48630-14595/root/chroot_tmpdir/scmroot/docbook2X'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/docbook2X
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5943842 import docbook2X-0.8.8-3.tl4