From aac72f4440ec13c3461166fa991130e98f4ae6a1 Mon Sep 17 00:00:00 2001
From: Roman Krasiuk <rokrassyuk@gmail.com>
Date: Tue, 6 Feb 2024 12:38:26 +0100
Subject: [PATCH] fix(consensus): skip building only for ancestor (#6442)

---
 crates/consensus/beacon/src/engine/mod.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/crates/consensus/beacon/src/engine/mod.rs b/crates/consensus/beacon/src/engine/mod.rs
index d2643767e2d8..231e8579fbda 100644
--- a/crates/consensus/beacon/src/engine/mod.rs
+++ b/crates/consensus/beacon/src/engine/mod.rs
@@ -474,7 +474,10 @@ where
         //    and deemed `VALID`. In the case of such an event, client software MUST return
         //    `{payloadStatus: {status: VALID, latestValidHash: forkchoiceState.headBlockHash,
         //    validationError: null}, payloadId: null}`
-        attrs.take();
+        if self.blockchain.canonical_tip() != header.num_hash() {
+            attrs.take();
+        }
+
         debug!(
             target: "consensus::engine",
             fcu_head_num=?header.number,