修复图片、文件上传组件的上传文件类型属性编辑器错误。

src/components/form-render/container-item/containerItemMixin.js

@@ -152,6 +152,10 @@ export default {
           subFormModel.splice(0, subFormModel.length)
           this.rowIdData.splice(0, this.rowIdData.length)
         }
+
+        if (this.widget.options.showBlankRow) {
+          this.addSubFormRow()
+        }
       }
     },
 

src/components/form-render/container-item/sub-form-item.vue

@@ -150,6 +150,11 @@
         return this.rowIdData
       },
 
+      getWidgetRefOfSubForm(widgetName, rowIndex) {
+        let realWidgetName = widgetName + '@row' + this.rowIdData[rowIndex]
+        return this.getWidgetRef(realWidgetName)
+      },
+
       initFieldSchemaData() {  //初始化fieldSchemaData！！！
         if (this.widget.type !== 'sub-form') {
           return