From 3cb27d156f6a30e8f950616a53a3726519eaf216 Mon Sep 17 00:00:00 2001
From: Doctor Wu <wuzhouchun@qq.com>
Date: Fri, 18 Jul 2025 15:28:01 +0800
Subject: [PATCH] fix(reactivity): remove link check to align with 3.5 (#13654)

close #13620
---
 packages/reactivity/src/system.ts | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/packages/reactivity/src/system.ts b/packages/reactivity/src/system.ts
index cc3eaad456..93adad3353 100644
--- a/packages/reactivity/src/system.ts
+++ b/packages/reactivity/src/system.ts
@@ -77,14 +77,8 @@ export function link(dep: ReactiveNode, sub: ReactiveNode): void {
       return
     }
   }
+  // TODO: maybe can find a good way to check duplicate link
   const prevSub = dep.subsTail
-  if (
-    prevSub !== undefined &&
-    prevSub.sub === sub &&
-    (!recursedCheck || isValidLink(prevSub, sub))
-  ) {
-    return
-  }
   const newLink =
     (sub.depsTail =
     dep.subsTail =
-- 
2.47.2