修复子表复制按钮功能bug

src/business/platform/form/formrender/dynamic-form/dynamic-form-table.vue

@@ -722,7 +722,7 @@ export default {
             const selection = this.getSelection(position, index)
             ActionUtils.selectedMultiRecord(selection).then((ids) => {
                 selection.forEach(i => {
-                    const obj = this.dataModel[i]
+                    const obj = JSON.parse(JSON.stringify(this.dataModel[i]))
                     delete obj.$index
                     delete obj.id
                     this.dataModel.push(obj)