set function not called on default values

[green3g]

In the previous version of canjs, setting a default value in a define object would automatically call a set function on that property, even if the constructor doesn't receive the property.

http://jsbin.com/wicuguwisa/edit?html,js,console,output

In the new version, there are probably some changes to how this is set up, because default values do not call the set property. But, if the DefineMap's constructor is passed this property, the set function is called.

http://jsbin.com/kepixenonu/edit?html,js,console,output

It would still be ideal to keep this functionality. I like to use setters to trigger updates to other fields when a value is set whether its set when the map is created using a default value or whether its set by passing the property to the constructor.