From e515c91e5ecf972a0232f34ccfb61bdb56cb35fd Mon Sep 17 00:00:00 2001
From: Amir Bandeali <abandeali1@gmail.com>
Date: Mon, 23 Dec 2019 19:36:54 -0800
Subject: [PATCH] Do not attempt to transfer asset if fill failed

---
 contracts/exchange-forwarder/contracts/src/MixinAssets.sol | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/contracts/exchange-forwarder/contracts/src/MixinAssets.sol b/contracts/exchange-forwarder/contracts/src/MixinAssets.sol
index eb0e5c1392..9b6a896d13 100644
--- a/contracts/exchange-forwarder/contracts/src/MixinAssets.sol
+++ b/contracts/exchange-forwarder/contracts/src/MixinAssets.sol
@@ -82,6 +82,10 @@ contract MixinAssets is
     )
         internal
     {
+        if (amount == 0) {
+            return;
+        }
+
         bytes4 proxyId = assetData.readBytes4(0);
 
         if (