From c7566c2a0150e405883f4101927ef4ae03400100 Mon Sep 17 00:00:00 2001
From: Anna Shaleva <shaleva.ann@nspcc.ru>
Date: Wed, 15 Mar 2023 17:45:56 +0300
Subject: [PATCH] consensus: perform batched chain's block sync

If there are several blocks from chain, then initialize consensus only for the
latest one.
---
 pkg/consensus/consensus.go | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/pkg/consensus/consensus.go b/pkg/consensus/consensus.go
index fb11bdea3..915b51629 100644
--- a/pkg/consensus/consensus.go
+++ b/pkg/consensus/consensus.go
@@ -345,15 +345,18 @@ events:
 		}
 		// Always process block event if there is any, we can add one above or external
 		// services can add several blocks during message processing.
+		var latestBlock *coreb.Block
 	syncLoop:
 		for {
 			select {
-			case b := <-s.blockEvents:
-				s.handleChainBlock(b)
+			case latestBlock = <-s.blockEvents:
 			default:
 				break syncLoop
 			}
 		}
+		if latestBlock != nil {
+			s.handleChainBlock(latestBlock)
+		}
 	}
 drainLoop:
 	for {