From ff130c470204086edaa093fb8fdc1247c69cba69 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 25 Feb 2024 17:35:19 +0800
Subject: [PATCH] fix(runtime-dom): avoid always resetting nullish option value

close #10396
---
 packages/runtime-dom/src/modules/props.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/runtime-dom/src/modules/props.ts b/packages/runtime-dom/src/modules/props.ts
index 3c09a127941..e9b3bca357d 100644
--- a/packages/runtime-dom/src/modules/props.ts
+++ b/packages/runtime-dom/src/modules/props.ts
@@ -39,7 +39,8 @@ export function patchDOMProp(
     el._value = value
     // #4956: <option> value will fallback to its text content so we need to
     // compare against its attribute value instead.
-    const oldValue = tag === 'OPTION' ? el.getAttribute('value') : el.value
+    const oldValue =
+      tag === 'OPTION' ? el.getAttribute('value') || '' : el.value
     const newValue = value == null ? '' : value
     if (oldValue !== newValue) {
       el.value = newValue