Comment 7 for bug 1872867

I have tested this code and consent to signing off on it with my name, Elaine Hardy and my email address, <email address hidden>

Tested on https://acorn.evergreencatalog.com/eg/staff and https://acorn.evergreencatalog.com/eg/opac

Two search filters were set to invisible by others -- Electronic and Microfirm. Both displayed in the filter list in the staff column as Electronic (Hidden) and Microform (Hidden).

In the public facing OPAC, the filters are not in the list. I was able to search and retrieve a record with the hidden format. Appears to work as desired