From 8f167822909474f4d57e3ff22d014828ad228a5c Mon Sep 17 00:00:00 2001
From: "Wladimir J. van der Laan" <laanwj@gmail.com>
Date: Wed, 4 Dec 2013 15:30:23 +0100
Subject: [PATCH] Prevent empty transactions from being added to vtxPrev

CWalletTx::AddSupportingTransactions() was adding empty transaction
to vtxPrev in some cases. Skip over these.

Part one of the solution to #3190. This prevents invalid vtxPrev from
entering the wallet, but not current ones being transmitted.
---
 src/wallet.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/wallet.cpp b/src/wallet.cpp
index 2d79b3bd90..f9ffd8ec31 100644
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -743,6 +743,10 @@ void CWalletTx::AddSupportingTransactions()
                 {
                     tx = *mapWalletPrev[hash];
                 }
+                else
+                {
+                    continue;
+                }
 
                 int nDepth = tx.SetMerkleBranch();
                 vtxPrev.push_back(tx);