CollectionProperty inside CollectionProperty not editable

[olibowork]

Hi,

i created a pagetype with a CollectionProperty where T is a CompositeProperty containing itself a CollectionProperty.
When i try to add an item to the inner collection 'xyz' in the admin-area, the edit-dialog appear a second time with it's header saing 'Unknown propertytype' and no properties to edit.

TIA
Oliver

[fschultz]

I'll check it out.