Nesting self-updating components.

[dxlbnl]

I've come across an issue, where onrender of a component isn't always called when it is being mounted.

I've created an example here.
It's got 3 components: Root -> List -> Item
List is being updated asynchronously. and it's adding some items to it's data.
The initial set of Items, from list is being rendered correctly. But the new elements rendered by the other values, are not being updated.

The problem lies in this generated code:

  if ( options._root ) {
    options._root._renderHooks.push({ fn: template$2.onrender, context: this });
  } else {
    template$2.onrender.call( this );
  }

options._root is the Root element. But that element is never updated, so it's _renderHooks are never called.
I can verify this by calling .set({}) on the root element.

[dxlbnl]

I can try to fix it. But I'm not familiar with the internals. Any pointers where the issue lies?

[Rich-Harris]

Released 1.6.8 with the fix