From ea7a525e53230c1de27c14b5ace0945914d2087b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ionic=C4=83=20Biz=C4=83u?= <bizauionica@yahoo.com>
Date: Mon, 9 Feb 2015 11:51:48 +0200
Subject: [PATCH] Clone data

---
 lib/index.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/index.js b/lib/index.js
index 466ec72..b9688da 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -276,11 +276,15 @@ GitStats.ansiCalendar = function (data, callback) {
       , strYear = ""
       , w = 0
       , d = 0
+      , dataClone = {
+            start: data.start ? Moment(data.start.format(DATE_FORMAT), DATE_FORMAT) : null
+          , end: data.end ? Moment(data.end.format(DATE_FORMAT), DATE_FORMAT) : null
+        }
       ;
 
     GitStats.calendar(data, function (err, cal) {
         if (err) { return callback(err); }
-        GitStats.iterateDays(function (cDay, mDay) {
+        GitStats.iterateDays(dataClone, function (cDay, mDay) {
             sDay = mDay.format("ddd");
             if (mDay.format("D") === "1") {
                 months.push(mDay.format("MMM"));