From 3602a13d197a9d53a7a71ff6399df01dee597cb4 Mon Sep 17 00:00:00 2001
From: Sampsa Saarela <sampsa@booni.fi>
Date: Mon, 30 Dec 2013 10:05:06 +0200
Subject: [PATCH] Headers were broken when upload a lot of large files (and set
 maxOperations to 5). Could be also relevant with issue #100.

---
 tasks/lib/s3.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tasks/lib/s3.js b/tasks/lib/s3.js
index 3e0cf7f..7f63a7d 100644
--- a/tasks/lib/s3.js
+++ b/tasks/lib/s3.js
@@ -110,7 +110,7 @@ exports.init = function (grunt) {
       return dfd.reject(makeError(MSG_ERR_NOT_FOUND, prettySrc));
     }
 
-    var headers = options.headers || {};
+    var headers = _.clone(options.headers || {});
 
     if (options.access) {
       headers['x-amz-acl'] = options.access;