From 31b518ef667c37974e0dc6540040501ca303e316 Mon Sep 17 00:00:00 2001
From: 0816i <0816i@naver.com>
Date: Thu, 27 Nov 2025 17:15:52 +0900
Subject: [PATCH] fix: make _extend method use shallow copy

---
 src/internal/util.inspect.polyfill.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/internal/util.inspect.polyfill.ts b/src/internal/util.inspect.polyfill.ts
index c0a8611..86ded25 100644
--- a/src/internal/util.inspect.polyfill.ts
+++ b/src/internal/util.inspect.polyfill.ts
@@ -378,7 +378,7 @@ function reduceToSingleString(output: string[], base: string, braces: string[]):
 }
 
 function _extend(origin: object, add: object): object {
-  const typedOrigin = { ...origin } as { [key: string]: unknown };
+  const typedOrigin = origin as { [key: string]: unknown };
   // Don't do anything if add isn't an object
   if (!add || !isObject(add)) return origin;