From 3fcf0c014093a8abbf22f69cb2b4b962f3bccebc Mon Sep 17 00:00:00 2001
From: William Banfield <wbanfield@gmail.com>
Date: Fri, 13 May 2022 17:10:12 -0400
Subject: [PATCH] blocksync checks for vote extensions

---
 internal/blocksync/reactor.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/internal/blocksync/reactor.go b/internal/blocksync/reactor.go
index 144595889..53d83eb99 100644
--- a/internal/blocksync/reactor.go
+++ b/internal/blocksync/reactor.go
@@ -557,7 +557,10 @@ func (r *Reactor) poolRoutine(ctx context.Context, stateSynced bool, blockSyncCh
 				// validate the block before we persist it
 				err = r.blockExec.ValidateBlock(ctx, state, first)
 			}
-
+			if err == nil && state.ConsensusParams.Vote.RequireExtensions(state.LastBlockHeight+1) {
+				// if vote extensions were required at this height, ensure they exist.
+				err = extCommit.EnsureExtensions()
+			}
 			// If either of the checks failed we log the error and request for a new block
 			// at that height
 			if err != nil {