下钻配置未清空上次配置问题修复

src/views/bigscreenDesigner/designer/index.vue

@@ -538,7 +538,10 @@ export default {
     },
     handleCollapse(val){
       this.dialogVisibleDrillDrown=true
-      this.screenData=val.drill_drown_setting?val.drill_drown_setting:this.screenData
+      this.screenData=val.drill_drown_setting?val.drill_drown_setting:{
+        dashboard: {  },
+        widgets: []
+      }
     },
     // 获取图层数据
     getLayerData(val) {