Lists do not bubble expando properties like maps do

[justinbmeyer]

Because lists lack a bubbleRule like https://github.com/canjs/can-map/blob/master/can-map.js#L123

They do not bubble expando events as shown here: http://jsbin.com/wigazun/edit?js,output

const Item = can.Model.extend();

const items = Item.models({
  data: [{}],
  meta: {
    foo: 'bar'
  }
});

items.bind('meta.foo', (ev, val, old) => console.log(`foo changed to ${val} from ${old}`));
items.attr('meta.foo', 'baz');