Specimen missing a collector + n° and missing a collection identifier (Barcode, Accession number) not identifiable in descriptive Matrix
e.g. linking a Specimen without fieldunit which has only information in the DerivedUnit.titleCache shows "no information" in the 2 fields to identify the specimen. Only the "Unit" field holding the id gives information on the related specimen.
This needs discussion why have exactly the 2 columns "collector + nr." and "accession number/barcode" instead of having 1 column that computes what ever is the best available human readable identifier. Or is it wanted that the user can choose from a number of columns which fits best?
Generally I think we should keep this simple and try to compute the best fitting label. The algorithm for this may be improved over time.
But at least, if the titleCaches are protected (and the specific fields are empty?) the according cells in the matrix should be filled
with the titleCache and not kept empty.