different facet entries but only sort changed

result.txt

a document with a number -> faceting over that

ComparatorType.TOTAL
====================

term:9	 count:2	 total:2.0
there should be 10 terms. there were:1

ComparatorType.COUNT
====================
term:9	 count:2	 total:2.0
term:8	 count:2	 total:2.0
term:7	 count:2	 total:2.0
term:6	 count:2	 total:2.0
term:5	 count:2	 total:2.0
term:4	 count:2	 total:2.0
term:3	 count:2	 total:2.0
term:2	 count:2	 total:2.0
term:1	 count:2	 total:2.0
term:0	 count:2	 total:2.0
there should be 10 terms. there were:10

test.java

    private Client client;
    private String indexType = "tweet";
    private String NUM = "num";
    private String TITLE = "title";

public void start() throws IOException, InterruptedException {
Node node = nodeBuilder().
        //                local(true).
        settings(ImmutableSettings.settingsBuilder().
        put("index.number_of_shards", 2).
        put("index.number_of_replicas", 0).
        put("gateway.type", "none").
        build()).
        build().
        start();

client = node.client();

// create indices
String index1 = "index1";
createIndex(index1);
waitForYellow(index1);

for (int i = 0; i < 20; i++) {
    feedDoc(index1, createDoc(i%10, "test this again"), "" + i);
}

String facetField = NUM;
AbstractFacetBuilder fb = FacetBuilders.termsStats(facetField).keyField(facetField).
        valueScript("doc.score").order(ComparatorType.COUNT);

SearchResponse rsp = client.prepareSearch(index1).
        setQuery(QueryBuilders.matchAllQuery()).
        addFacet(fb).setExplain(true).
        execute().actionGet();

TermsStatsFacet f = (TermsStatsFacet) rsp.facets().facet(facetField);

for (TermsStatsFacet.Entry e : f.entries()) {            
    System.out.println("term:"+e.term() + "\t count:" + e.count() + "\t total:" + e.total());// always 1? + "\t" + e.mean());
}

System.out.println("there should be 10 terms. there were:" + f.entries().size());

node.stop();
}

    public XContentBuilder createDoc(int num, String title) throws IOException {
        XContentBuilder docBuilder = JsonXContent.unCachedContentBuilder().startObject();
        docBuilder.field(NUM, num);
        docBuilder.field(TITLE, title);
        docBuilder.endObject();
        return docBuilder;
    }

    public void feedDoc(String indexName, XContentBuilder b, String id) {
        IndexRequestBuilder irb = client.prepareIndex(indexName, indexType, id).
                setConsistencyLevel(WriteConsistencyLevel.DEFAULT).setRefresh(true).
                setSource(b);
        irb.execute().actionGet();
    }