refactor: replace `Object.assign` with `extend` (#8988)

diff --git a/packages/runtime-core/src/componentPublicInstance.ts b/packages/runtime-core/src/componentPublicInstance.ts
index b43accfa0a34650398f0ee7dbcfd3c4cebb83ab9..357ad280b9bf647c074ac3ca8b7bc83f66e2b146 100644 (file)
--- a/packages/runtime-core/src/componentPublicInstance.ts
+++ b/packages/runtime-core/src/componentPublicInstance.ts
@@ -396,9 +396,7 @@ export const PublicInstanceProxyHandlers: ProxyHandler<any> = {
           return desc.get.call(instance.proxy)
         } else {
           const val = globalProperties[key]
-          return isFunction(val)
-            ? Object.assign(val.bind(instance.proxy), val)
-            : val
+          return isFunction(val) ? extend(val.bind(instance.proxy), val) : val
         }
       } else {
         return globalProperties[key]