让群集在地图缩放上爬行

Question

在手动取消未标记之前，如何使单击的markerCluster在地图缩放上保持蜘蛛状排列？如果我做对了，在每个zoomstart集群更新中，是否每次都手动重新打开它？

this.cluster = leaflet.markerClusterGroup({
    zoomToBoundsOnClick: false,
    showCoverageOnHover: false
});

this.cluster.on("clusterclick", event => {
    event.layer.spiderfy();
    // I guess some magic should happen at this part of code
});