Adding association to schema composer should automatically add the association c

[Geert Bellekens]

Details:
When building a schema in the schema you can select an association and it will automatically add the target of the association to the schema.
When however the association has an association class, this association class is not automatically added to the schema.
The user has to search for the association class in the model and drag it to the schema composer manually, if he is even aware there is an association class to be considered in the first place.


Steps to Reproduce:
- Create a model with an association class
- Drag the source of the association into a schema in the schema composer
- Select the association in the schema composer
- Notice that the target of the association is automatically added to the schema
- Notice that the association class is not automatically added to the schema.

Reported

Geert