$ git clone -n https://gitee.com/src-opencloudos-rpms/dbus-broker.git /var/lib/mock/dist-oc9-build-60377-16463/root/chroot_tmpdir/scmroot/dbus-broker
Cloning into '/var/lib/mock/dist-oc9-build-60377-16463/root/chroot_tmpdir/scmroot/dbus-broker'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/dbus-broker
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c93b32 import dbus-broker-31-4.tl4