$ git clone -n https://gitee.com/src-opencloudos-rpms/jdom.git /var/lib/mock/dist-oc9-build-58931-16463/root/chroot_tmpdir/scmroot/jdom
Cloning into '/var/lib/mock/dist-oc9-build-58931-16463/root/chroot_tmpdir/scmroot/jdom'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/jdom
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e72ab87 import jdom-1.1.3-3.tl4