diff --git a/bower.json b/bower.json
index b52e80f..67728d4 100644
--- a/bower.json
+++ b/bower.json
@@ -1,10 +1,11 @@
 {
   "name": "ember-model",
-  "version": "0.0.14",
+  "version": "0.0.15",
   "main": "ember-model.js",
   "dependencies": {
-    "ember": "~1.11"
+    "ember": "~1.10"
   },
+  "swrve_notice": "DOWNGRADED_EMBER_VERSION_FROM_1.11_TO_MATCH_OURS",
   "devDependencies": {
     "qunit": "~1.11"
   },
diff --git a/ember-model.js b/ember-model.js
index 36c8c4d..143dca8 100644
--- a/ember-model.js
+++ b/ember-model.js
@@ -1,6 +1,6 @@
 (function() {
 
-var VERSION = '0.0.14';
+var VERSION = '0.0.15';
 
 if (Ember.libraries) {
   Ember.libraries.register('Ember Model', VERSION);
@@ -630,7 +630,7 @@ Ember.Model = Ember.Object.extend(Ember.Evented, {
     var relationships = this.constructor._relationships || [], meta = Ember.meta(this), relationshipKey, relationship, relationshipMeta, relationshipData, relationshipType;
     for (var i = 0, l = relationships.length; i < l; i++) {
       relationshipKey = relationships[i];
-      relationship = meta.descs[relationshipKey];
+      relationship = (meta.descs || this)[relationshipKey];
       relationshipMeta = relationship.meta();
 
       if (relationshipMeta.options.embedded) {
@@ -1256,11 +1256,14 @@ Ember.Model.reopenClass({
   // FIXME
   findFromCacheOrLoad: function(data, container) {
     var record;
-    if (!data[get(this, 'primaryKey')]) {
+    // SWRVE CHANGES
+    var primaryKeyValue = data[get(this, 'primaryKey')];
+    if (!primaryKeyValue) {
       record = this.create({isLoaded: false, container: container});
     } else {
-      record = this.cachedRecordForId(data[get(this, 'primaryKey')], container);
+      record = this.cachedRecordForId(primaryKeyValue, container);
     }
+    // END OF SWRVE CHANGES
     // set(record, 'data', data);
     record.load(data[get(this, 'primaryKey')], data);
     return record;
diff --git a/package.json b/package.json
index 32387e5..07c9d25 100644
--- a/package.json
+++ b/package.json
@@ -32,5 +32,5 @@
     "grunt-contrib-watch": "~0.4.4",
     "grunt-ember-s3": "~1.0.2"
   },
-  "version": "0.0.11"
+  "version": "0.0.15"
 }
diff --git a/packages/ember-model/lib/has_many.js b/packages/ember-model/lib/has_many.js
index 9756a3b..c3c935c 100644
--- a/packages/ember-model/lib/has_many.js
+++ b/packages/ember-model/lib/has_many.js
@@ -28,7 +28,14 @@ Ember.hasMany = function(type, options) {
     var key = options.key || propertyKey;
 
     if (arguments.length > 1) {
-      return existingArray.setObjects(newContentArray);
+      // SWRVE CHANGES
+      // Check if the arrays are the same,
+      // otherwise observers are executed for nothing!
+      if (!Ember.isEqual(newContentArray, existingArray)) {
+      // END OF SWRVE CHANGES
+        return existingArray.setObjects(newContentArray);
+      }
+      return existingArray;
     } else {
       return this.getHasMany(key, type, meta, this.container);
     }
diff --git a/packages/ember-model/lib/has_many_array.js b/packages/ember-model/lib/has_many_array.js
index 0e8d80d..28564dc 100644
--- a/packages/ember-model/lib/has_many_array.js
+++ b/packages/ember-model/lib/has_many_array.js
@@ -123,11 +123,24 @@ Ember.ManyArray = Ember.RecordArray.extend({
   },
 
   load: function(content) {
-    Ember.setProperties(this, {
-      content: content,
-      originalContent: content.slice()
-    });
+    // SWRVE CHANGES
+    // Check if the new items are the same as the current ones
+    // Otherwise observers are executed for nothing!
+    var currentContent = get(this, 'content');
+    var mustUpdateCollection = content.length !== currentContent.length;
+    for (var i = 0, l = content.length; i < l && !mustUpdateCollection; i++) {
+      var existingItem = currentContent[i];
+      var newItem = content[i];
+      mustUpdateCollection = newItem !== existingItem;
+    }
+    if (mustUpdateCollection) {
+      Ember.setProperties(this, {
+        content: content,
+        originalContent: content.slice()
+      });
+    }
     set(this, '_modifiedRecords', []);
+    // END OF SWRVE CHANGES
   },
 
   revert: function() {
diff --git a/packages/ember-model/lib/version.js b/packages/ember-model/lib/version.js
index 3e864cb..c1c0098 100644
--- a/packages/ember-model/lib/version.js
+++ b/packages/ember-model/lib/version.js
@@ -1,4 +1,4 @@
-var VERSION = '0.0.14';
+var VERSION = '0.0.15';
 
 if (Ember.libraries) {
   Ember.libraries.register('Ember Model', VERSION);
diff --git a/packages/ember-model/tests/has_many/embedded_objects_load_test.js b/packages/ember-model/tests/has_many/embedded_objects_load_test.js
index a0c678c..4092a1a 100644
--- a/packages/ember-model/tests/has_many/embedded_objects_load_test.js
+++ b/packages/ember-model/tests/has_many/embedded_objects_load_test.js
@@ -115,3 +115,59 @@ test("loading embedded data into a parent with deleted children deletes the chil
   equal(post.get('comments.length'), 1);
   equal(post.get('comments.firstObject.body'), 'new');
 });
+
+// SWRVE CHANGES
+test("loading collections with same element twice does not trigger observers", function() {
+  expect(4);
+  var json = {
+    id: 1,
+    title: 'foo',
+    comments: [{
+      id: 1,
+      text: 'helo'
+    }]
+  };
+
+  var Comment = Ember.Model.extend({
+    id: attr(),
+    text: attr()
+  });
+  Comment.adapter = Ember.RESTAdapter.create();
+  Comment.url = '/comments';
+
+  var Article = Ember.Model.extend({
+    title: attr(),
+    comments: Ember.hasMany(Comment, { key: 'comments', embedded: true }),
+
+    commentsChangeCounter: 0,
+    commentsChanged: function() {
+      this.incrementProperty('commentsChangeCounter');
+    }.observes('comments.@each')
+  });
+  Article.adapter = Ember.RESTAdapter.create();
+  Article.url = '/articles';
+  Article.adapter._ajax = function() {
+    return new Ember.RSVP.Promise(function(resolve) {
+      resolve(json);
+    });
+  };
+  
+  var article = Article.create();
+  Ember.run(article, article.load, json.id, json);
+  // Force collection to be taken into account (_registerHasManyArray)
+  var comments = article.get('comments');
+  equal(article.get('commentsChangeCounter'), 0, "Inital load didn't triggered observers");
+  var json2 = {
+    id: 1,
+    title: 'foo',
+    comments: [{
+      id: 1,
+      text: 'helo here' // <- updated
+    }]
+  };
+  Ember.run(article, article.load, json.id, json2);
+  equal(article.get('commentsChangeCounter'), 0, "Load with the same collection didn't triggered observers");
+  equal(comments.get('isDirty'), false, "comments should not be dirty");
+  deepEqual(Ember.run(comments, comments.mapProperty, 'text'), ['helo here']);
+});
+// END OF SWRVE CHANGES
diff --git a/packages/ember-model/tests/has_many/manipulation_test.js b/packages/ember-model/tests/has_many/manipulation_test.js
index 51e6339..2f168fc 100644
--- a/packages/ember-model/tests/has_many/manipulation_test.js
+++ b/packages/ember-model/tests/has_many/manipulation_test.js
@@ -3,6 +3,7 @@ var attr = Ember.attr;
 module("Ember.HasManyArray - manipulation");
 
 test("pushing record without an id adds a reference to the content", function() {
+  expect(3);
   var json = {
     id: 1,
     title: 'foo',
@@ -42,6 +43,7 @@ test("pushing record without an id adds a reference to the content", function()
 });
 
 test('adding and reverting an existing record to a many array', function () {
+  expect(6);
   var json = {
     id: 1,
     title: 'foo',
@@ -86,6 +88,7 @@ test('adding and reverting an existing record to a many array', function () {
 });
 
 test('adding and reverting a new record to a many array', function () {
+  expect(6);
   var json = {
     id: 1,
     title: 'foo',
@@ -128,6 +131,7 @@ test('adding and reverting a new record to a many array', function () {
 });
 
 test("removing a record from the many array", function() {
+  expect(4);
   var json = {
     id: 1,
     title: 'foo',
@@ -169,6 +173,7 @@ test("removing a record from the many array", function() {
 });
 
 test("setting a has many array with empty array", function() {
+  expect(5);
   var json = {
     id: 1,
     title: 'foo',
@@ -208,6 +213,7 @@ test("setting a has many array with empty array", function() {
 });
 
 test("setting a has many array with item array", function() {
+  expect(5);
   var json = {
     id: 1,
     title: 'foo',
@@ -247,6 +253,7 @@ test("setting a has many array with item array", function() {
 });
 
 test("setting a hasMany array with setObjects", function() {
+  expect(5);
   var json = {
     id: 1,
     title: 'foo',
@@ -283,4 +290,52 @@ test("setting a hasMany array with setObjects", function() {
 
   equal(article.get('comments.length'), 3, "should be 3 comments after revert");
   equal(article.get('comments.isDirty'), false, "should not be dirty after revert");
-});
\ No newline at end of file
+});
+
+// SWRVE CHANGES
+test("setting a has many array with the same array should not trigger its observers", function() {
+  expect(7);
+  var json = {
+    id: 1,
+    title: 'foo',
+    comments: [1, 2, 3]
+  };
+
+  var Comment = Ember.Model.extend({
+    text: attr()
+  });
+
+  var Article = Ember.Model.extend({
+    title: attr(),
+
+    comments: Ember.hasMany(Comment, { key: 'comments' }),
+
+    commentsChangeCounter: 0,
+    commentsChanged: function() {
+      this.incrementProperty('commentsChangeCounter');
+    }.observes('comments.@each')
+  });
+
+  Comment.adapter = Ember.FixtureAdapter.create();
+  Comment.FIXTURES = [
+    {id: 1, text: 'uno'},
+    {id: 2, text: 'dos'},
+    {id: 3, text: 'tres'}
+  ];
+
+  var article = Article.create();
+  Ember.run(article, article.load, json.id, json);
+
+  equal(article.get('comments.length'), 3, "should be 3 comments");
+
+  article.set('comments', article.get('comments'));
+  equal(article.get('comments.length'), 3, "should still be 3 comments");
+  equal(article.get('comments.isDirty'), false, "comments should not be dirty");
+  equal(article.get('commentsChangeCounter'), 0, "comment observers should not fire");
+
+  article.set('comments', [Comment.find(3)]);
+  equal(article.get('comments.length'), 1, "should be 1 comment after set");
+  equal(article.get('comments.isDirty'), true, "comments should be dirty after set");
+  equal(article.get('commentsChangeCounter'), 1, "comment observers should have fired 1 time");
+});
+// END OF SWRVE CHANGES
\ No newline at end of file
diff --git a/packages/ember-model/tests/model_test.js b/packages/ember-model/tests/model_test.js
index 7415f24..371dd7a 100644
--- a/packages/ember-model/tests/model_test.js
+++ b/packages/ember-model/tests/model_test.js
@@ -651,9 +651,9 @@ test("toJSON works with string names", function() {
         author: Ember.belongsTo('author', { key: 'author' })
       });
 
-  App.registry.register('model:comment', Comment);
-  App.registry.register('model:author', Author);
-  App.registry.register('model:article', Article);
+  App.__container__.register('model:comment', Comment);
+  App.__container__.register('model:author', Author);
+  App.__container__.register('model:article', Article);
 
   var articleData = {
     id: 1,
diff --git a/packages/ember-model/tests/record_array_test.js b/packages/ember-model/tests/record_array_test.js
index dae6178..3049b86 100644
--- a/packages/ember-model/tests/record_array_test.js
+++ b/packages/ember-model/tests/record_array_test.js
@@ -18,7 +18,7 @@ module("Ember.RecordArray", {
       {id: 2, name: 'Stefan'},
       {id: 3, name: 'Kris'}
     ];
-    container = new Ember.Registry().container();
+    container = new Ember.Container();
   },
   teardown: function() { }
 });
diff --git a/packages/ember-model/tests/store_test.js b/packages/ember-model/tests/store_test.js
index cd4d1f7..17ce1a8 100644
--- a/packages/ember-model/tests/store_test.js
+++ b/packages/ember-model/tests/store_test.js
@@ -1,9 +1,8 @@
-var TestModel, EmbeddedModel, UUIDModel, store, registry, container, App;
+var TestModel, EmbeddedModel, UUIDModel, store, container, App;
 
 module("Ember.Model.Store", {
   setup: function() {
-    registry = new Ember.Registry();
-    container = registry.container();
+    container = new Ember.Container();
 
     store = Ember.Model.Store.create({container: container});
     TestModel = Ember.Model.extend({
@@ -61,10 +60,10 @@ module("Ember.Model.Store", {
     });
     EmbeddedModel.adapter = Ember.FixtureAdapter.create({});
 
-    registry.register('model:test', TestModel);
-    registry.register('model:embedded', EmbeddedModel);
-    registry.register('model:uuid', UUIDModel);
-    registry.register('store:main', Ember.Model.Store);
+    container.register('model:test', TestModel);
+    container.register('model:embedded', EmbeddedModel);
+    container.register('model:uuid', UUIDModel);
+    container.register('store:main', Ember.Model.Store);
   }
 });
 
@@ -172,16 +171,16 @@ test("store.adapterFor(type) returns klass.adapter first", function() {
 
 test("store.adapterFor(type) returns type adapter if no klass.adapter", function() {
   TestModel.adapter = undefined;
-  registry.register('adapter:test', Ember.FixtureAdapter);
-  registry.register('adapter:application', null);
+  container.register('adapter:test', Ember.FixtureAdapter);
+  container.register('adapter:application', null);
   var adapter = Ember.run(store, store.adapterFor, 'test');
   ok(adapter instanceof Ember.FixtureAdapter);
 });
 
 test("store.adapterFor(type) returns application adapter if no klass.adapter or type adapter", function() {
   TestModel.adapter = undefined;
-  registry.register('adapter:test', null);
-  registry.register('adapter:application', Ember.FixtureAdapter);
+  container.register('adapter:test', null);
+  container.register('adapter:application', Ember.FixtureAdapter);
   var adapter = Ember.run(store, store.adapterFor, 'test');
   ok(adapter instanceof Ember.FixtureAdapter);
 });
@@ -189,9 +188,9 @@ test("store.adapterFor(type) returns application adapter if no klass.adapter or
 test("store.adapterFor(type) defaults to RESTAdapter if no adapter specified", function() {
 
   TestModel.adapter = undefined;
-  registry.register('adapter:test', null);
-  registry.register('adapter:application', null);
-  registry.register('adapter:REST',  Ember.RESTAdapter);
+  container.register('adapter:test', null);
+  container.register('adapter:application', null);
+  container.register('adapter:REST',  Ember.RESTAdapter);
   var adapter = Ember.run(store, store.adapterFor, 'test');
   ok(adapter instanceof Ember.RESTAdapter);
 });
@@ -200,8 +199,8 @@ test("store.find(type) records use application adapter if no klass.adapter or ty
   expect(3);
   TestModel.adapter = undefined;
   EmbeddedModel.adapter = undefined;
-  registry.register('adapter:test', null);
-  registry.register('adapter:application', Ember.FixtureAdapter);
+  container.register('adapter:test', null);
+  container.register('adapter:application', Ember.FixtureAdapter);
   
   var promise = Ember.run(store, store.find, 'test','a');
 
diff --git a/tests/runner.html.tmpl b/tests/runner.html.tmpl
index e2b763e..f1ce223 100644
--- a/tests/runner.html.tmpl
+++ b/tests/runner.html.tmpl
@@ -2,7 +2,7 @@
 <html>
 <head>
   <meta charset="utf-8">
-  <title>QUnit basic example</title>
+  <title>Ember model tests</title>
   <link rel="stylesheet" href="../bower_components/qunit/qunit/qunit.css">
 </head>
 <body>