[Koha] heading subfields mismatch between auth and bib records using the thesaurus plugin

[Fabio T.]

Hello everyone!

There are some cases where a mismatch between the authority heading
subfields and the receiving bibliographic ones could happen. This occurs
when enabling the thesaurus plugin for bibliographic fields who are not
designed as main/added entry fields, either in MARC21 and UNIMARC instances;
I will bring one example each.

UNIMARC: 410$t set to receive the heading of an authority record from a book
series authority index. When choosing the authority record from the
thesaurus plugin search results, the authority heading is placed in 410$a
instead of 410$t.

MARC21: 260$b set to receive the heading of an authority record from a
publisher authority index. When choosing the authority record from the
thesaurus plugin search results, the authority heading is placed in 260$a
instead of 260$b.

I'd like to exchange some ideas on this topic, with librarians and
developers along (hence the post in the main list). Do you use any
workaround ("redirecting" the output coming from the plugin, changing the
authority heading subfields to reflect the bibliographic ones...?)? Is it
made this way by design (expected behaviour), or would it make sense to
change the code to handle these cases?

Thanks in advance for sharing your thoughts!

Fabio



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