From c2baa09b1f5e93b69a6749edb1def8377ab9c626 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Sun, 6 Mar 2016 12:36:07 -0800
Subject: [PATCH] more serialization.

---
 lib/bcoin/tx.js | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/lib/bcoin/tx.js b/lib/bcoin/tx.js
index 97fdffb4..e9046816 100644
--- a/lib/bcoin/tx.js
+++ b/lib/bcoin/tx.js
@@ -1075,18 +1075,26 @@ TX.prototype.toExtended = function toExtended(coins) {
   var buf = new Buffer(tx.length + 4 + 32 + 4 + 4 + 4);
   var block = this.block ? new Buffer(this.block, 'hex') : constants.zeroHash;
   var height = this.height;
+  var index = this.index;
+  var changeIndex = this.changeIndex != null ? this.changeIndex : -1;
   var off = 0;
 
   if (height === -1)
     height = 0x7fffffff;
 
+  if (index === -1)
+    index = 0x7fffffff;
+
+  if (changeIndex === -1)
+    changeIndex = 0x7fffffff;
+
   off += utils.copy(tx, buf, off);
   off += utils.writeU32(buf, height, off);
   off += utils.copy(block, buf, off);
   off += utils.writeU32(buf, this.index, off);
   off += utils.writeU32(buf, this.ts, off);
   off += utils.writeU32(buf, this.ps, off);
-  // off += utils.writeU32(buf, this.changeIndex || -1, off);
+  // off += utils.writeU32(buf, changeIndex, off);
 
   if (coins) {
     off += utils.writeIntv(buf, this.inputs.length, off);
@@ -1131,6 +1139,8 @@ TX._fromExtended = function _fromExtended(buf, coins) {
   off += 4;
   tx.ps = utils.readU32(buf, off);
   off += 4;
+  // tx.changeIndex = utils.readU32(buf, off);
+  // off += 4;
 
   if (+tx.block === 0)
     tx.block = null;
@@ -1138,6 +1148,12 @@ TX._fromExtended = function _fromExtended(buf, coins) {
   if (tx.height === 0x7fffffff)
     tx.height = -1;
 
+  if (tx.index === 0x7fffffff)
+    tx.index = -1;
+
+  if (tx.changeIndex === 0x7fffffff)
+    tx.changeIndex = -1;
+
   if (coins) {
     coinCount = utils.readIntv(buf, off);
     off = coinCount.off;