I have the following model:

var Soq = Backbone.model.extend({
    default:{
        'name': 'something'
        , 'parents': []       //array will be passed by reference to attributes hash on new object instantiation
    } 
});

I am new to javascript and backbone but looking at the source I think what might be happening is that when this model's attributes get set to the defaults (backbone.js: 137) and the default value is an object it is done by reference. This means that when I do something like this:

var soq = new Soq;
var parents = soq.get('parents');
parents.push('parent');               //changes defaults of the proto object

var soq2 = new Soq;
console.log(soq2.get('parents'););  //will output ['parent']
console.log(soq2.defaults.parents); //will output ['parent']

Am I understanding this correctly, and if so what is the best way to set default values that are objects without making them subject to change anytime a future instance references them?

Let me know if I am being unclear or misunderstanding something. Thanks in advance for your time.

javascript backbone.js
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