$ git clone -n https://gitee.com/src-opencloudos-rpms/python-traceback2.git /var/lib/mock/dist-oc9-build-53339-14748/root/chroot_tmpdir/scmroot/python-traceback2
Cloning into '/var/lib/mock/dist-oc9-build-53339-14748/root/chroot_tmpdir/scmroot/python-traceback2'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-traceback2
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 976f77b import python-traceback2-1.4.0-4.gitf83071d.tl4