$ git clone -n https://gitee.com/src-opencloudos-rpms/python-oslo-messaging.git /var/lib/mock/dist-oc9-epol-build-55838-14784/root/chroot_tmpdir/scmroot/python-oslo-messaging
Cloning into '/var/lib/mock/dist-oc9-epol-build-55838-14784/root/chroot_tmpdir/scmroot/python-oslo-messaging'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-oslo-messaging
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4fa52c0 import python-oslo-messaging-12.7.1-2.tl4