Breeze issue with complexType change tracking -

i use angular , breeze in app , use "haschangeschanged" event handling state of entities stored in entitymanager. have problem when have entity property complextype , isscalar=false. problem occurs when make request twice (without changing entity) , same entity. on second request "haschangeschanged" event fired haschanges=true. in moment when event fired entity has state "modified", after data loaded state changed "unchanged".

i've wrote (jasmine) unit test. in comments information assertion throws error.

    var entity,         haschanges = false,         listeners = {             onchange: function (event) {                 console.log('change', event.haschanges);             }         };     spyon(listeners, 'onchange');      $httpbackend.expectget('json/sampleentity?').respond(200, [         {             id: 1,             name: 'some name',             data: {},             $type: 'sampleentity',             elements: [                 {                     etype: 'el1'                 }             ]         }     ]);     manager.haschangeschanged.subscribe(function (event) {         haschanges = event.haschanges;     });      var query = new breeze.entityquery('sampleentity');     manager.executequery(query).then(function (data) {         entity = data.results[0];     });       $httpbackend.flush();      expect(haschanges).tobe(false); // ok     expect(entity.entityaspect.entitystate.isunchanged()).tobe(true); // ok      $httpbackend.expectget('json/sampleentity?').respond(200, [         {             id: 1,             name: 'some name',             data: {},             $type: 'sampleentity',             elements: [                 {                     etype: 'el1'                 }             ]         }     ]);     manager.executequery(query).then(function (data) {         entity = data.results[0];     });     $httpbackend.flush();      expect(haschanges).tobe(false); // error     expect(entity.entityaspect.entitystate.isunchanged()).tobe(true); // ok 

is expected behavior? , if not how can fix it?