Editions appear in the list of the aggregation overview of the landing page, when only collection should be listed

In Beta Portal, in the project site, not only the collections but also the editions appear listed. See snapshot and following examples:

If the editions belong to a collection and the project does not have editions at the root level, the editions should not appear, but only the collections.

In the standard TGR portal, this is correctly shown (see ELTeC example: https://textgridrep.org/project/TGPR-99d098e9-b60f-98fd-cda3-6448e07e619d).