From: Doctor Wu <wuzhouchun@qq.com>
Date: Fri, 18 Jul 2025 07:28:01 +0000 (+0800)
Subject: fix(reactivity): remove link check to align with 3.5 (#13654)
X-Git-Tag: v3.6.0-alpha.2~4
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3cb27d156f6a30e8f950616a53a3726519eaf216;p=thirdparty%2Fvuejs%2Fcore.git

fix(reactivity): remove link check to align with 3.5 (#13654)

close #13620
---

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 =