Do Not Display Nested `objects` of Type `metadata` in search results/catalog page

[artntek]

Describe the feature you'd like

In the search results/catalog page, MetacatUI displays all documents that are marked as metadata. This is desirable for top-level metadata documents (e.g. EML docs) that describe a dataset. However, some datasets may contain objects of type metadata, actually nested within the package. These also show up in the catalog, but they appear as plain text, not clickable links. See example below.

Is your feature request related to a problem? Please describe.

On the GOA search page: https://goa.nceas.ucsb.edu/data
...the 2nd item in the list is: (2023). Gulf of Alaska Data Portal. urn:uuid:e81f06f6-aa1b-4cab-83f1-0f5ce35bcabf - but it is not a clickable link - just plain text.

(If I manually create a view URL with that PID, it displays correctly: https://goa.nceas.ucsb.edu/view/urn:uuid:e81f06f6-aa1b-4cab-83f1-0f5ce35bcabf)

The type of this object is metadata (http://www.isotc211.org/2005/gmd). However, it is referenced as a data object within a package.

From the solr index we can see that it isDocumentedBy another data object.

<arr name="isDocumentedBy">
    <str>doi:10.5063/F1CF9NK7</str>
</arr>

...and here is the real package to which it belongs: https://goa.nceas.ucsb.edu/view/doi:10.5063/F1CF9NK7

[robyngit]

Right now the query for the data catalogue is:

(-obsoletedBy:* AND formatType:METADATA AND -formatId:(*dataone.org\/collections* OR *dataone.org\/portals*))

Adding -isDocumentedBy:* to the query removes the problematic result, but also three others. Here are all four docs that would be removed from the catalogue with the new query. Do we want to exclude all of those?

Alternatively, this document is the only one in the catalogue that both documents something and isDocumentedBy something (see query). Is that the reason we should exclude it?

[artntek]

I don't have enough knowledge to answer this. Flagging @taojing2002 for input.