From 89385531e73ee7fdc0911f7d9be06f7713d5d5ee Mon Sep 17 00:00:00 2001
From: Thane Thomson <connect@thanethomson.com>
Date: Tue, 5 Apr 2022 14:12:11 -0400
Subject: [PATCH] Always expect an extension signature, regardless of whether
 an extension is present

Signed-off-by: Thane Thomson <connect@thanethomson.com>
---
 types/vote.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/types/vote.go b/types/vote.go
index 8c72637c9..1ca9669e1 100644
--- a/types/vote.go
+++ b/types/vote.go
@@ -173,7 +173,7 @@ func (vote *Vote) Verify(chainID string, pubKey crypto.PubKey) error {
 		return ErrVoteInvalidSignature
 	}
 	extSignBytes := VoteExtensionSignBytes(chainID, v)
-	if vote.Extension != nil && !pubKey.VerifySignature(extSignBytes, vote.ExtensionSignature) {
+	if !pubKey.VerifySignature(extSignBytes, vote.ExtensionSignature) {
 		return ErrVoteInvalidSignature
 	}
 	return nil