$ git clone -n https://gitee.com/src-opencloudos-rpms/rabbitmq-server.git /var/lib/mock/dist-oc9-epol-build-54332-14768/root/chroot_tmpdir/scmroot/rabbitmq-server
Cloning into '/var/lib/mock/dist-oc9-epol-build-54332-14768/root/chroot_tmpdir/scmroot/rabbitmq-server'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/rabbitmq-server
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 139104d import rabbitmq-server-3.11.10-3.tl4