From a55cc5c65e24b169bcfe948122ba78b7f489d139 Mon Sep 17 00:00:00 2001
From: Jae Kwon <jae@tendermint.com>
Date: Sun, 5 Jul 2015 15:47:30 -0700
Subject: [PATCH] nil validation has zero size

---
 types/block.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/types/block.go b/types/block.go
index 7b52d4b25..d607c2c17 100644
--- a/types/block.go
+++ b/types/block.go
@@ -224,6 +224,9 @@ func (v *Validation) Type() byte {
 }
 
 func (v *Validation) Size() int {
+	if v == nil {
+		return 0
+	}
 	return len(v.Precommits)
 }