$ git clone -n https://gitee.com/src-opencloudos-rpms/python-os-traits.git /var/lib/mock/dist-oc9-epol-build-55640-14782/root/chroot_tmpdir/scmroot/python-os-traits
Cloning into '/var/lib/mock/dist-oc9-epol-build-55640-14782/root/chroot_tmpdir/scmroot/python-os-traits'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-os-traits
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d4b352c import python-os-traits-2.5.0-2.tl4