identify category without knowing its parent
Question: if I have a node with a unique name, do I need to refer to it by "parent_name/category_name", or is "category_name" enough?
At the moment parent_name/category_name is the convention used to identify any node. If you just say «category_name» then it is assumed to be a top category, with no parent. Maybe we could do something like */category_name or %/category_name to specify all categories with that name, regardless of its parent.