explain default values for default types

[Lukas113]

I haven't seen in the dev-guide the behavior of default values for default types. If I go to the MMODA frontend, the default values for the default types remain the same for each service. This lead to the question, are default values of default types even considered? I also thought, maybe the default-values may be relevant, if the entry of the default-values in the front-end will are deleted/empty? If they're not the default-values when empty, what are they instead?

Looking at the front-end values and the doc, I assume that the default values of the default types don't have any influence. I think it makes sense to either enhance the documentation about the behavior, or the default-values for each service need to be set accordingly.