From dfab24bf92fad9bdb10311851a63963ed620ea55 Mon Sep 17 00:00:00 2001
From: zhiqiangxu <652732310@qq.com>
Date: Mon, 14 Aug 2023 03:16:04 +0000
Subject: [PATCH] opt `maybe_update_best_child_and_descendant`: remove an
 impossible case (#4583)

Here `child.weight == best_child.weight` is impossible since it's already checked [above](https://github.com/sigp/lighthouse/blob/dfcb3363c757671eb19d5f8e519b4b94ac74677a/consensus/proto_array/src/proto_array.rs#L878).
---
 consensus/proto_array/src/proto_array.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/consensus/proto_array/src/proto_array.rs b/consensus/proto_array/src/proto_array.rs
index 6cb10e3d2..7b6afb94f 100644
--- a/consensus/proto_array/src/proto_array.rs
+++ b/consensus/proto_array/src/proto_array.rs
@@ -884,7 +884,7 @@ impl ProtoArray {
                         }
                     } else {
                         // Choose the winner by weight.
-                        if child.weight >= best_child.weight {
+                        if child.weight > best_child.weight {
                             change_to_child
                         } else {
                             no_change