This reverts commit f41646aa4baa5807cefeb4c3bb95f7937d001b50.
Originally, we thought that we missed the
literal Referable in FragmentKeys.
In #337, we introduced that literal,
together with all the logical problems
and paradoxes that come with it.
However, as it turns out,
it was a bug in the specification,
rather than our mistake.
Therefore, we revert the changes here.
This reverts commit f41646aa4baa5807cefeb4c3bb95f7937d001b50.
Originally, we thought that we missed the literal
ReferableinFragmentKeys. In #337, we introduced that literal, together with all the logical problems and paradoxes that come with it. However, as it turns out, it was a bug in the specification, rather than our mistake. Therefore, we revert the changes here.See aas-core-works/aas-core3.0-python#37 for the discussion, as it was discovered there.