From 518e1f04754a2fdf85e7aebfdd164b45e94daf7f Mon Sep 17 00:00:00 2001
From: Stefan Penner <stefan.penner@gmail.com>
Date: Mon, 13 Mar 2017 21:44:54 -0700
Subject: [PATCH] [PERF] let GUID_KEYS just be set on the model instances

---
 addon/-private/system/model/model.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/addon/-private/system/model/model.js b/addon/-private/system/model/model.js
index 73335d61734..6f4f125fce7 100644
--- a/addon/-private/system/model/model.js
+++ b/addon/-private/system/model/model.js
@@ -85,6 +85,9 @@ const retrieveFromCurrentState = computed('currentState', function(key) {
 const Model = Ember.Object.extend(Ember.Evented, {
   _internalModel: null,
   store: null,
+  __defineNonEnumerable(property) {
+    this[property.name] = property.descriptor.value;
+  },
 
   /**
     If this property is `true` the record is in the `empty`