From a724b070143507f69ecf4dcf380d315f481af2ef Mon Sep 17 00:00:00 2001
From: Antoine James <antoine@ethereum.org>
Date: Fri, 28 Nov 2025 16:48:37 +0100
Subject: [PATCH] chore(chain): fix visual bug on visualize_batch_state leading
 to a non-wanted comma

---
 beacon_node/network/src/sync/range_sync/chain.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/beacon_node/network/src/sync/range_sync/chain.rs b/beacon_node/network/src/sync/range_sync/chain.rs
index 014d728ffe4..4ce10e23ca1 100644
--- a/beacon_node/network/src/sync/range_sync/chain.rs
+++ b/beacon_node/network/src/sync/range_sync/chain.rs
@@ -1331,7 +1331,7 @@ impl<T: BeaconChainTypes> SyncingChain<T> {
                 .get(&(self.processing_target + batch_index as u64 * EPOCHS_PER_BATCH))
             {
                 visualization_string.push(batch.visualize());
-                if batch_index != BATCH_BUFFER_SIZE {
+                if batch_index < BATCH_BUFFER_SIZE - 1 {
                     // Add a comma in between elements
                     visualization_string.push(',');
                 }