search for Insecta yields Mollusca

[jhpoelen]

When searching for:

dwc:class:Insecta

and

dwc:basisOfRecord:PreservedSpecimen

dwc:institutionCode:CM (Carnegie Museum of Natural History)

Expected:
when searching for records with class Insecta, only records of class Insecta are returned.

Actual:
Search results include record https://www.idigbio.org/portal/records/729bdadb-8e42-4c32-8068-cac41ab005e9 of class Gastropoda

(see attached screenshots)