Comment 5 for bug 1772981

It looks like the issue here is that config.metabib_field for ID 37 does not define the same browse_xpath as the other author fields. The other author browse fields (7, 8, 9, and 10) set browse_xpath to:

//*[local-name()='namePart']

Were we to put that into the config for 37, it should collapse these values in the same way.

That said, I think perhaps a better solution here for a standard configuration would be to not have config 37 be defined as a browse field at all (i.e. browse_field = 'f'). I'm guessing field 37 was added to aid in combined search of all creators (or possibly a shared display field?), and is functionally duplicative of the other four fields when it comes to browse, since browse fields are never by their nature combined. But this suggestion is just my supposition, and testing may reveal a reason to keep this as a duplicate browse definition for creators.

Dan