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.
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.
This seems to be fixed via Bug 38729. After applying the patch and setting the new syspref LinkerConsiderDiacritics to 'do', when linking via "Link authorities automatically", "Ankor" and "Änkor" are correctly linked. Not sure though what exactly you mean by this: > So, if you search for widows as subject you will get matches for Donald Duck. Where do "search for widows"? If I don't autolink, but click on the manual search / linking popup thingy, I get two results (Ankor and Änkor). And can manually then pick the correct one. But again, I assume that 38729 fixes this bug.
Created attachment 180030 [details] screenshot of linked auths Ah, taking the title of this bug as a hint, I tried: * setting AutoCreateAuthorities to 'generate' * editing a biblio * adding a new 650$a 'Töst' * adding another new 650$a 'Täst' * save * click on the 'autolink button' * the 650s point to two different auths * (see screenshot)