mapbox聚合图，给每个点设置了属性值，想聚合的时候根据属性值相加聚合，但是聚合出来的点没有值？

Question

this.map.on("load", function () {

            map.addSource("clusters", {
                type: "geojson",
                data: {
                    type: "FeatureCollection",
                    features: []
                },
                cluster: true,
                clusterMaxZoom: 14,
                clusterRadius: 50
            });

            map.addLayer({
                id: "clusters-layer",
                type: "circle",
                source: "clusters",
                filter: ["has", "countTotal"],
                paint: {
                    "circle-color": [
                        "step",
                        ["get", "countTotal"],
                        "#51bbd6",
                        100,
                        "#f1f075",
                        500,
                        "#f28cb1"
                    ],
                    "circle-radius": [
                        "step",
                        ["get", "countTotal"],
                        20,
                        100,
                        30,
                        500,
                        40
                    ]
                }
            });

            // map.addLayer({
            //     id: "cluster-count",
            //     type: "symbol",
            //     source: "clusters",
            //     filter: ["has", "point_count"],
            //     layout: {
            //         "text-field": "{point_count}",
            //         "text-font": ["DIN Offc Pro Medium", "Arial Unicode MS Bold"],
            //         "text-size": 15
            //     }
            // });

            map.addLayer({
              id: "unclustered-point",
              type: "circle",
              source: "clusters",
              filter: ["!", ["has", "countTotal"]],
              paint: {
                "circle-color": "#11b4da",
                "circle-radius": 10,
                "circle-stroke-width": 1,
                "circle-stroke-color": "#fff"
              }
            });

            //聚合图圆圈中的数字
            map.addLayer({
              id: "cluster-count-text",
              type: "symbol",
              source: "clusters",
              filter: ["has", "countTotal"],
              layout: {
                "text-field": "{countTotal}",//我们找到我们自己要展示的值
                "text-font": ["DIN Offc Pro Medium", "Arial Unicode MS Bold"],
                "text-size": 15
              },
              // 添加这个就可以改变圆圈内字样式，这里我改变了他的颜色
              paint: {
                "text-color": "#fff",
                "text-opacity": 1
              }
            })


            self.updateData();

            self.props.onMapLoaded && self.props.onMapLoaded();
        })

聚合后：

聚合前：