embedded needs in embedded needs are not supported

[PhilipPartsch]

An embedded need in an embedded need is not supported:

.. req:: Bread
   :id: bread_req_2
   :value: 30
   :unit: cm
   
   Our bread includes sausage.
   
   .. req:: Sausage
      :id: sausage_req_2
      :value: 30
      :unit: cm

      The sausage is delicious and on top is some ketchup.

      .. req:: Ketchup
         :id: Ketchup_req_2

          The ketchup is tasty.

   .. req:: Onion
      :id: onion_req_2

      The onions are delicious.

In the html or needs.json the parent_needs are always empty.

Secondly, the algorithm to get the parents /childs, is fetching even parents of the parents and so on. In a model of the relations, this is not good practice. We shall only provide the real parents of need (and do not give back the grands as parents, too). This is especially bad, as the grands would mark grandchilds as children, too.

[PhilipPartsch]

@danwos can you close this ticket?