$broadcast not working in some instances

I have a case where I dynamically create a list of components:

``` html
<div v-repeat="actions" v-component="{{$value}}"></div>
```

After adding something to the list (`this.actions.push('some-component')`), then changing an element (`this.actions = ['some-other-component']`) - that component will no longer receive `$broadcast` events.

Let me know if you have issues reproducing this.
