update: 老数据兼容

src/views/goods/coupon/detail.vue

@@ -1023,8 +1023,8 @@ export default {
         const type = Number(showStore);
         this.visibleData.sendChildData.storeType = type; // ：0所有 1门店分组 2部分门店
         if (type == 1) {
-          const arr = storeGroupIds.split(',');
-          this.visibleData.sendChildData.storeGroupIds = arr.join(',');
+          const arr = storeGroupIds && storeGroupIds.split(',');
+          this.visibleData.sendChildData.storeGroupIds = arr && arr.join(',');
         } else if (type == 2) {
           this.visibleData.sendChildData.storeIds = storeInfo;
         }