fix canvas多类型事件 合并bug

ruoyi-ui/src/views/JiHeExpressway/pages/Home/components/RoadAndEvents/utils/map.js

@@ -90,6 +90,9 @@ export class MarkerCluster {
               extData,
             };
           }
+          if (graphInstance.getCellById(stakeMark)) {
+            graphInstance.removeNode(stakeMark);
+          }
           graphInstance.addNode({
             x: distance,
             y: 60,