From 02ec2fd58f16efdf8dfb9f1a37cd70bb22c850c4 Mon Sep 17 00:00:00 2001
From: "Scott J. Miles" <sjmiles@google.com>
Date: Wed, 2 Oct 2013 18:39:28 -0700
Subject: [PATCH] do not override user attributes with instance attributes (ref
 #190)

---
 src/instance/attributes.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/instance/attributes.js b/src/instance/attributes.js
index ee6811a220..a5d6ad497c 100644
--- a/src/instance/attributes.js
+++ b/src/instance/attributes.js
@@ -11,7 +11,9 @@
     copyInstanceAttributes: function () {
       var a$ = this._instanceAttributes;
       for (var k in a$) {
-        this.setAttribute(k, a$[k]);
+        if (!this.hasAttribute(k)) {
+          this.setAttribute(k, a$[k]);
+        }
       }
     },
     // for each attribute on this, deserialize value to property as needed