Hello, after upgrading Ember to 1.8 i get this error:
Error: Assertion Failed: You must use Ember.set() to set the `current` property (of <(unknown mixin):ember541>) to `[object Object]`.
This seems to happen when i try to set a property defined in the prototype of a subclass of
Is this really necessary? this property is not exposed to any template, and i dont need computed properties/observers on it; it is used for private state of the class.