$ git clone -n https://gitee.com/src-opencloudos-rpms/python-osc-placement.git /var/lib/mock/dist-oc9-epol-build-55211-14778/root/chroot_tmpdir/scmroot/python-osc-placement
Cloning into '/var/lib/mock/dist-oc9-epol-build-55211-14778/root/chroot_tmpdir/scmroot/python-osc-placement'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-osc-placement
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e58abdf import python-osc-placement-2.2.0-2.tl4