Bug 33401

Summary: Diacritics are ignored when auto-creating authorities
Product: Koha Reporter: Klas Blomberg <klas.blomberg>
Component: MARC Authority data supportAssignee: Bugs List <koha-bugs>
Status: NEW --- QA Contact: Testopia <testopia>
Severity: normal    
Priority: P5 - low    
Version: 22.05   
Hardware: All   
OS: All   
Change sponsored?: --- Patch complexity: ---
Documentation contact: Documentation submission:
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Attachments: Different subject heading in same authority record

Description Klas Blomberg 2023-04-04 09:15:29 UTC
Created attachment 149122 [details]
Different subject heading in same authority record

Koha doesn't take diakrits in consideration when authority records are created.

In swedish we have three extra letters in the alphabet - ÅÄÖ. Koha treats those letters as AAO, and creates one unified authority record for the subject headings "Ankor" (ducks) and "Änkor" (widows)

So, if you search for widows as subject you will get matches for Donald Duck.
Comment 1 Katrin Fischer 2023-04-04 09:17:28 UTC
I assume this might be because it appears the same to the search engine/SQL. Maybe an additional check is needed before creating the authority.