From 286363a2ba5ccd1cc6bfbbcffc89f659876923de Mon Sep 17 00:00:00 2001
From: Christian Meixner <christian@smapone.com>
Date: Thu, 25 Jun 2015 11:58:12 +0200
Subject: [PATCH] fixes leaking options between recognizer instances by coping
 the options object into a new object upon instantiation #813

---
 hammer.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/hammer.js b/hammer.js
index 522668899..008f29d47 100644
--- a/hammer.js
+++ b/hammer.js
@@ -1256,10 +1256,13 @@ var STATE_FAILED = 32;
  * @param {Object} options
  */
 function Recognizer(options) {
+    // make sure, options are copied over to a new object to prevent leaking it outside
+    options = extend({}, options || {});
+
     this.id = uniqueId();
 
     this.manager = null;
-    this.options = merge(options || {}, this.defaults);
+    this.options = merge(options, this.defaults);
 
     // default is enable true
     this.options.enable = ifUndefined(this.options.enable, true);