From 595da55dfb68eeebf3454d71ef814621ffcae395 Mon Sep 17 00:00:00 2001
From: Potuz <potuz@prysmaticlabs.com>
Date: Sat, 14 Feb 2026 14:50:25 +0100
Subject: [PATCH] fix weight

---
 beacon-chain/forkchoice/doubly-linked-tree/gloas.go  | 2 +-
 testing/spectest/shared/common/forkchoice/builder.go | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/beacon-chain/forkchoice/doubly-linked-tree/gloas.go b/beacon-chain/forkchoice/doubly-linked-tree/gloas.go
index 86b5c99eee..cd4ed50e84 100644
--- a/beacon-chain/forkchoice/doubly-linked-tree/gloas.go
+++ b/beacon-chain/forkchoice/doubly-linked-tree/gloas.go
@@ -319,7 +319,7 @@ func (f *ForkChoice) updateNewFullNodeWeight(fn *PayloadNode) {
 			fn.balance += f.balances[index]
 		}
 	}
-	fn.balance = fn.weight
+	fn.weight = fn.balance
 }
 
 func (s *Store) resolveVoteNode(r [32]byte, slot primitives.Slot, payloadStatus bool) (*PayloadNode, bool) {
diff --git a/testing/spectest/shared/common/forkchoice/builder.go b/testing/spectest/shared/common/forkchoice/builder.go
index 95138486d0..b42c843f15 100644
--- a/testing/spectest/shared/common/forkchoice/builder.go
+++ b/testing/spectest/shared/common/forkchoice/builder.go
@@ -141,7 +141,8 @@ func (bb *Builder) Check(t testing.TB, c *Check) {
 	if c.Head != nil {
 		r, err := bb.service.HeadRoot(ctx)
 		require.NoError(t, err)
-		require.Equal(t, true, bytes.Equal(common.FromHex(c.Head.Root), r))
+		wantedRoot := common.FromHex(c.Head.Root)
+		require.Equal(t, true, bytes.Equal(wantedRoot, r), fmt.Sprintf("Roots differ. wanted %#x, got %#x", wantedRoot, r))
 		require.Equal(t, primitives.Slot(c.Head.Slot), bb.service.HeadSlot())
 	}
 	if c.JustifiedCheckPoint != nil {