[Koha] Koha 3.22 authorities linking and hierarchy not working properly

[Andreas Roussos]

Hello,

We plan to use authorities linking and hierarchy in production
to display thesaurus based topical subject authorities.

On a clean install of Koha 3.22 on Ubuntu using UNIMARC, we
created 1 biblio with 2 topical subject authorities (biblio
unimarc 607), the one being broader than the other and linked
them.

Issue #1: authority link relations had to be entered manually
(in 550$5 'g' and 550$5 'h') as they would not be entered using
the authority finder plugin.

Issue #2: only broader to narrower terms show correctly when
viewing the broader term's details with a collapsible + sign
to display the narrower term, while in the narrower term's
details view no broader term is displayed as linked.

Any guidance will be greatly appreciated,
Andreas