The placement view should not be in the reference path

<class name="Foo" defaultplacement="sub">
    <view name="sub0">
    </view>
</class>

<Foo name="foo">
    <view name="sub1">
    </view>
</Foo>

The way to refer sub1 has to be foo.sub0.sub1 now, I think the correct way should be foo.sub1. Also sub1.parent should be foo but currently it is sub0.
