From eb68438047c90a752ad5ea33b7877d54feab1e14 Mon Sep 17 00:00:00 2001
From: DCloud_LXH <283700113@qq.com>
Date: Thu, 28 Apr 2022 17:34:53 +0800
Subject: [PATCH] fix: click event error question/144073

---
 packages/uni-core/src/view/plugin/componentWxs.ts | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/packages/uni-core/src/view/plugin/componentWxs.ts b/packages/uni-core/src/view/plugin/componentWxs.ts
index b0c437605..61da68cdd 100644
--- a/packages/uni-core/src/view/plugin/componentWxs.ts
+++ b/packages/uni-core/src/view/plugin/componentWxs.ts
@@ -4,6 +4,7 @@ import {
   isPlainObject,
   parseStringStyle,
   stringifyStyle,
+  hasOwn,
 } from '@vue/shared'
 import {
   ON_WXS_INVOKE_CALL_METHOD,
@@ -270,11 +271,14 @@ export function wrapperH5WxsEvent(
   checkArgsLength = true
 ) {
   if (eventValue) {
-    Object.defineProperty(event, 'instance', {
-      get() {
-        return getComponentDescriptor(instance!.proxy!, false)
-      },
-    })
+    if (!event.__instance) {
+      event.__instance = true
+      Object.defineProperty(event, 'instance', {
+        get() {
+          return getComponentDescriptor(instance!.proxy!, false)
+        },
+      })
+    }
     const ownerVm = resolveOwnerComponentPublicInstance(
       eventValue,
       instance!,
-- 
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