From ca8c445c4b49d4e40d60b2a8ecbb1979f053b520 Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@twurst.com>
Date: Sun, 7 Jul 2019 22:59:34 +0200
Subject: [PATCH] p2p/discutil: document higher-seq behavior of ReadNodes

---
 p2p/discutil/iter.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/p2p/discutil/iter.go b/p2p/discutil/iter.go
index e014cd8786..69c7968da0 100644
--- a/p2p/discutil/iter.go
+++ b/p2p/discutil/iter.go
@@ -50,6 +50,7 @@ func ReadNodes(ctx context.Context, it Iterator, n int) []*enode.Node {
 		if node == nil {
 			continue
 		}
+		// Remove duplicates, keeping the node with higher seq.
 		prevNode, ok := seen[node.ID()]
 		if ok && prevNode.Seq() > node.Seq() {
 			continue