_mvt endpoint does not include cross cluster prefix with `_index` value. For example, `_index` returns `myIndexPattern` instead of expected `cluster_one:myIndexPattern`. _search endpoint includes cross cluster prefix with `_index` value. This is causing problems in [Kibana maps tooltips](https://github.com/elastic/kibana/issues/153210)
x-pack/plugin/vector-tile/src/main/java/org/elasticsearch/xpack/vectortile/rest/RestVectorTileAction.java
final String aggName = metricNames.size() == 1 ? aggregation.getName() : aggregation.getName() + "." + metric;
                    searchRequestBuilder.addAggregation(new StatsBucketPipelineAggregationBuilder(aggName, bucketPath));
                }
            }
        }
        if (request.getExactBounds()) {
            final GeoBoundsAggregationBuilder boundsBuilder = new GeoBoundsAggregationBuilder(BOUNDS_FIELD).field(request.getField())
                .wrapLongitude(false);
            searchRequestBuilder.addAggregation(boundsBuilder);
        }
        for (SortBuilder<?> sortBuilder : request.getSortBuilders()) {
            searchRequestBuilder.addSort(sortBuilder);
        }
        return searchRequestBuilder;
    }
    @SuppressWarnings("unchecked")
    private static VectorTile.Tile.Layer.Builder buildHitsLayer(SearchHit[] hits, VectorTileRequest request, FeatureFactory featureFactory)
        throws IOException {
        final VectorTile.Tile.Layer.Builder hitsLayerBuilder = VectorTileUtils.createLayerBuilder(HITS_LAYER, request.getExtent());
        final MvtLayerProps layerProps = new MvtLayerProps();
        final VectorTile.Tile.Feature.Builder featureBuilder = VectorTile.Tile.Feature.newBuilder();
        for (SearchHit searchHit : hits) {
            String requestField = request.getField();
            final DocumentField geoField = searchHit.field(requestField);
            if (geoField == null) {
                continue;
            }
            final Map<String, DocumentField> fields = searchHit.getDocumentFields();
            for (Object feature : geoField) {