From ff82ccec7148eee9b6b8bf451bad91f9c5478810 Mon Sep 17 00:00:00 2001
From: Esteban Ordano <eordano@gmail.com>
Date: Thu, 8 Jan 2015 16:18:20 -0300
Subject: [PATCH] Return undefined instead of a null signature

---
 lib/transaction/input/multisigscripthash.js | 4 ++--
 lib/transaction/unspentoutput.js            | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/transaction/input/multisigscripthash.js b/lib/transaction/input/multisigscripthash.js
index d56e1ad..e8a6286 100644
--- a/lib/transaction/input/multisigscripthash.js
+++ b/lib/transaction/input/multisigscripthash.js
@@ -43,7 +43,7 @@ MultiSigScriptHashInput.prototype.toObject = function() {
 MultiSigScriptHashInput.prototype._deserializeSignatures = function(signatures) {
   return _.map(signatures, function(signature) {
     if (!signature) {
-      return signature;
+      return undefined;
     }
     return {
       publicKey: new PublicKey(signature.publicKey),
@@ -59,7 +59,7 @@ MultiSigScriptHashInput.prototype._deserializeSignatures = function(signatures)
 MultiSigScriptHashInput.prototype._serializeSignatures = function() {
   return _.map(this.signatures, function(signature) {
     if (!signature) {
-      return signature;
+      return undefined;
     }
     return {
       publicKey: signature.publicKey.toString(),
diff --git a/lib/transaction/unspentoutput.js b/lib/transaction/unspentoutput.js
index f8aee61..f02dc79 100644
--- a/lib/transaction/unspentoutput.js
+++ b/lib/transaction/unspentoutput.js
@@ -98,7 +98,7 @@ UnspentOutput.prototype.toJSON = function() {
  */
 UnspentOutput.prototype.toObject = function() {
   return {
-    address: this.address.toString(),
+    address: this.address ? this.address.toString() : undefined,
     txid: this.txId,
     vout: this.outputIndex,
     scriptPubKey: this.script.toBuffer().toString('hex'),