修复moveableMarker移除后事件未取消订阅

src/view/common/MoveableMarker.js

@@ -25,6 +25,10 @@ class MoveableMarker extends Component{
         });
     }
 
+    componentWillUnmount(){
+        PubSub.unsubscribe('map.marker.move');
+    }
+
     render(){
         return <>
             <Marker