修改商品报错，bug修复

src/views/ecw/product/index.vue

@@ -489,7 +489,7 @@ export default {
       // this.reset();
       const id = row.id;
       getProduct(id).then(response => {
-        this.form = {...response.data};
+        this.form = {...response.data,couponIds:[]};
         let attrArray = this.form.attrId.split(',');
         for (let index in attrArray) {
           let value = attrArray[index];