From 967449b0d5b012e0c7bab2a7e16dc89c94dd0b16 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Thu, 1 Dec 2016 13:35:04 -0800
Subject: [PATCH] chaindb: minor.

---
 lib/blockchain/chaindb.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/blockchain/chaindb.js b/lib/blockchain/chaindb.js
index 4b11390a..f5cafc8e 100644
--- a/lib/blockchain/chaindb.js
+++ b/lib/blockchain/chaindb.js
@@ -933,6 +933,9 @@ ChainDB.prototype.getFullBlock = co(function* getFullBlock(hash) {
   view = new CoinView();
   undo = yield this.getUndoCoins(block.hash());
 
+  if (undo.isEmpty())
+    return block;
+
   for (i = block.txs.length - 1; i > 0; i--) {
     tx = block.txs[i];
     for (j = tx.inputs.length - 1; j >= 0; j--) {
@@ -942,7 +945,7 @@ ChainDB.prototype.getFullBlock = co(function* getFullBlock(hash) {
   }
 
   // Undo coins should be empty.
-  assert(undo.items.length === 0, 'Undo coins data inconsistency.');
+  assert(undo.isEmpty(), 'Undo coins data inconsistency.');
 
   return block;
 });
@@ -1759,7 +1762,7 @@ ChainDB.prototype.disconnectBlock = co(function* disconnectBlock(block) {
   }
 
   // Undo coins should be empty.
-  assert(undo.items.length === 0, 'Undo coins data inconsistency.');
+  assert(undo.isEmpty(), 'Undo coins data inconsistency.');
 
   // Commit new coin state.
   this.saveView(view);