From 0fdaabc43ae143c496aeb7a4fe6fd37015b6e72b Mon Sep 17 00:00:00 2001
From: Thorsten Luenborg <t.luenborg@googlemail.com>
Date: Thu, 28 Oct 2021 14:13:35 +0200
Subject: [PATCH] fix(compat): don't bind function from globalProperties to the
 current istance if it has additional properties

close #4403
---
 packages/runtime-core/src/componentPublicInstance.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/runtime-core/src/componentPublicInstance.ts b/packages/runtime-core/src/componentPublicInstance.ts
index dd385a815c9..42fe3c73e06 100644
--- a/packages/runtime-core/src/componentPublicInstance.ts
+++ b/packages/runtime-core/src/componentPublicInstance.ts
@@ -356,7 +356,9 @@ export const PublicInstanceProxyHandlers: ProxyHandler<any> = {
           return desc.get.call(instance.proxy)
         } else {
           const val = globalProperties[key]
-          return isFunction(val) ? val.bind(instance.proxy) : val
+          return isFunction(val) && Object.keys(val).length === 0
+            ? val.bind(instance.proxy)
+            : val
         }
       } else {
         return globalProperties[key]