[Koha-bugs] [Bug 33159] Thesaurus is not defined by second indicator for controlled fields outside of 6XX

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=33159

--- Comment #26 from Phil Ringnalda <phil at chetcolibrary.org> ---
There is sense in looking for a thesaurus for 100, 700, and 830, because they
share authority records with 600 and 630. If you don't look for a thesaurus to
decide between two or more Shakespeare, William authority records, then the
default linker says "oops, more than one result, no link for you" (and worse
yet, first match or last match could decide to link to the authority record for
a subject thesaurus that you could later decide you didn't want to use, and
when you deleted the authority record you would not only delete the subject
headings, you would also delete the author headings).

This bug is about making what bug 30280 tried to do actually work, a narrow
enough scope that is has made it to Passed QA and is ready to land.

"Bug 30280 shouldn't have mapped ind2=4 to 008/11=n" and "Bug 30280 should have
treated 008/11=z with no 040$f as a wildcard authority that matches any value
of $2 when no other authority with a match in 040$f exists" are both legitimate
other followup bugs (as is "Bug 30280 should have put its new behavior behind a
preference that defaults to off"), but they aren't part of making what it tried
to do actually work.

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