From 9bc3c7e29cf15f5ca96703542d10cfd786a3fc55 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 30 Dec 2023 08:26:48 +0800
Subject: [PATCH] fix(defineModel): always default modifiers to empty object

close #9945
---
 packages/runtime-core/src/apiSetupHelpers.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/runtime-core/src/apiSetupHelpers.ts b/packages/runtime-core/src/apiSetupHelpers.ts
index 244e30ac9a8..dfa1635ad4f 100644
--- a/packages/runtime-core/src/apiSetupHelpers.ts
+++ b/packages/runtime-core/src/apiSetupHelpers.ts
@@ -414,7 +414,7 @@ export function useModel(
     return {
       next() {
         if (i < 2) {
-          return { value: i++ ? props[modifierKey] : res, done: false }
+          return { value: i++ ? props[modifierKey] || {} : res, done: false }
         } else {
           return { done: true }
         }