Recorded by search facet returns no results

[llivermore]

Issue raised via follow-up email on 7 September 2016 by Rupert Barrington.

Search facets for collectors "recorded by" seem to be broken and returning no results.

For example, there are multiple records that have been recorded by the following people in the iCollections dataset: "L H Newman; Newman", "L. Tatchell; Tatchell", "N A Watkins; Watkins". All these authors appear in the dropdown menu but searching on any of them with no other facets/search terms results in "No matching records".

Example query for L H Newman: http://data.nhm.ac.uk/dataset/56e711e6-c847-4f99-915a-6894bb5c5dea/resource/05ff2255-c38a-40c9-b657-4ccb55ab2feb?q=&filters=_f%3AscientificName%7C_f%3AscientificNameAuthorship%7C_f%3Aclass%7C_f%3Afamily%7C_f%3Agenus%7C_f%3AspecificEpithet%7C_f%3AinfraspecificEpithet%7C_f%3Alocality%7C_f%3AviceCountry%7C_f%3Acountry%7C_f%3ArecordedBy%7C_f%3AtypeStatus%7C_f%3AcatalogNumber%7C_f%3AcollectionCode%7C_f%3AgbifIssue%7CrecordedBy%3AL+H+Newman%3B+Newman

[benscott]

Facets with commas are not working.