修复部分海运价格非阶梯价不显示包装类型

src/views/ecw/productPrice/edit.vue

@@ -461,7 +461,7 @@ export default {
               item.packagingTypes = item.packagingTypes.split(',')
             }
           })
-        }
+        }else this.form.freightPricePackagingList = [{}]
         if(this.form.clearancePricePackagingList?.length){
           this.form.clearancePricePackagingList.forEach(item => {
             if(!item.packagingTypes){
@@ -470,7 +470,7 @@ export default {
               item.packagingTypes = item.packagingTypes.split(',')
             }
           })
-        }
+        }else this.form.clearancePricePackagingList = [{}]
       }
     }