修复联动填充设置bug

src/components/DesignForm/formControlPropertiNew.vue

@@ -4137,7 +4137,12 @@ const expandUserComponentsTree = computed(()=>{
 const treeSelectRef = ref();
 
 const handleTreeSelectChange = (value) => {
+  console.log(value)
 
+  if(undefined == value){
+    controlData.value.control.connectUserComponent = ""
+    controlData.value.control.showConnectUserComponent = ""
+  }else{
     // value 是选中的值，根据props配置，默认是节点的id
   //console.log('选中的值:', value);
 
@@ -4151,6 +4156,8 @@ const handleTreeSelectChange = (value) => {
       // 你可以在这里做你想要的操作
     }
   }
+
+  }
 };