Hey,
i found a solution which involes another api call:
/cms/v3/hubdb/tables/{tableIdOrName}
This Endpoint returns the details of the published table and with the parameter
includeForeignIds
all foreign ID values will be populated.
So we can fetch the table details and get all of the foreign id values, after that we fetch all of our rows that we need and map the foregin ids with the values we received.
BR