Is there a known bug related to this?
A librarian mentioned they placed the same tag on 5 items, but a search produces just 1 result.
I looked in the database and I see, instead of 1 tag record, with 5 resource records, 5 tag records with 1 resource record each. My single result is the first tag/resource pair.
The tag text is identical – case, no spaces etc.. – browse tag confirms this, as well as a handcrafted sql query.
I tried to find the search code, to remove what appears to be the assumption of unique tag text so that it would cope with the multiples but am not making good headway.