From: HcySunYang <HcySunYang@outlook.com>
Date: Mon, 17 May 2021 18:07:53 +0000 (+0800)
Subject: fix(compat): avoid accidentally delete the modelValue prop (#3772)
X-Git-Tag: v3.1.0-beta.4~11
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4f17be7b1ce4872ded085a36b95c1897d8c1f299;p=thirdparty%2Fvuejs%2Fcore.git

fix(compat): avoid accidentally delete the modelValue prop (#3772)
---

diff --git a/packages/runtime-core/src/compat/componentVModel.ts b/packages/runtime-core/src/compat/componentVModel.ts
index 03ae787afb..e179c3b1d4 100644
--- a/packages/runtime-core/src/compat/componentVModel.ts
+++ b/packages/runtime-core/src/compat/componentVModel.ts
@@ -39,8 +39,10 @@ export function convertLegacyVModelProps(vnode: VNode) {
     // modelValue -> value
     // onUpdate:modelValue -> onModelCompat:input
     const { prop = 'value', event = 'input' } = (type as any).model || {}
-    props[prop] = props.modelValue
-    delete props.modelValue
+    if (prop !== 'modelValue') {
+      props[prop] = props.modelValue
+      delete props.modelValue
+    }
     // important: update dynamic props
     if (dynamicProps) {
       dynamicProps[dynamicProps.indexOf('modelValue')] = prop