https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=35565 Phil Ringnalda <phil@chetcolibrary.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |phil@chetcolibrary.org --- Comment #2 from Phil Ringnalda <phil@chetcolibrary.org> --- (In reply to Esther Melander from comment #0)

LinkerOptions: broader_headings

That's precisely what broader_headings does: if there's no match for a heading with more than one subfield, it removes the last one until it finds a match or runs out of subfields to remove. As the manual says, "This feature is experimental and shouldn’t be used in a production environment until further expanded upon." The feature has been untouched since it landed in 2012. It would be possible to fix this particular problem by teaching it to not remove subfields in the name portion and name-title portion of https://www.loc.gov/marc/authority/adx00.html but then doing the same for x10 and x11 will be complicated by the way that you can actually have more than one $d or $n, where one is part of the name and one is part of the title in a name-title heading. Perhaps a config file for what subfields may be removed from each bib field (since it would be reasonable to have different choices for 100/600/700/800)? Or, in far fewer lines of code, remove the feature which has been experimental and non-production and untouched for over 13 years. -- You are receiving this mail because: You are watching all bug changes. You are the assignee for the bug.

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=35565 --- Comment #3 from Esther Melander <esther.melander@bywatersolutions.com> --- I ran into another example with a corporate term. In this case these system preferences were enabled. AutoLinkBiblios = on LinkerOptions = broader_headings The terms were: AuthId = 559641 110 $aChurch of Jesus Christ of Latter-Day Saints AuthID = 360524 110 $aChurch of Jesus Christ of Latter-Day Saints $x Presidents Bibliographic records with the first term were incorrectly auto linking to the second term. Attempts were made to manually edit the bibliographic record with the correct authority id $9 559641, but upon saving the authority was relinking to the second term. There may be a second bug in this situation, but it appears that LinkerOptions was interfering with linking to the correct heading because it was ignoring the second subfield $x and just linking to the first available option, which corresponds to AuthID 360524. Since LinkerOptions is clearly interfering with other system preferences and causing anomalous linking, it is probably best to remove this system preference altogether. -- You are receiving this mail because: You are the assignee for the bug. You are watching all bug changes.

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=35565 --- Comment #5 from Esther Melander <esther.melander@bywatersolutions.com> --- I ran some tests on a test site where LinkerOptions was disabled. LinkerModule was set to first match. AutoLinkBiblios set to Do. I had these authorities: Auth ID=50 110 $aChurch of Jesus Christ of Latter-Day Saints $d Presidents Auth ID=51 110 $aChurch of Jesus Christ of Latter-Day Saints Added a new authority to a record to match AuthID 51. Upon saving the record it correctly linked to Authority 51. No other authorities in the record linked incorrectly. Repeated the above but enabled LinkerOptions with broader_headings and deleted $9. Got these results: 110 $aChurch of Jesus Christ of Latter-Day Saints $9 51 610 $aChurch of Jesus Christ of Latter-Day Saints $vHymns $9 51 The 610 authority was not in the system. So possibly LinkerOptions is interfering with LinkerModule, though it seems like LinkerOptions did what it was supposed to do linking an authority because it did match the broader heading. Repeated the test again with LinkerOptions enabled on the same record and deleted $9. I added the Presidents topical term to the record and added an authority for the Hymns and got these results: 110 _ _ ‡aChurch of Jesus Christ of Latter-Day Saints‡9 51 610 _ 0 ‡aChurch of Jesus Christ of Latter-Day Saints‡vHymns‡9 52 610 _ _ ‡aChurch of Jesus Christ of Latter-Day Saints‡xPresidents‡9 51 Disabled LinkerOptions again, deleted $9 and got these results (which are correct): 110 _ _ ‡aChurch of Jesus Christ of Latter-Day Saints‡9 51 610 _ 0 ‡aChurch of Jesus Christ of Latter-Day Saints‡vHymns‡9 52 610 _ _ ‡aChurch of Jesus Christ of Latter-Day Saints‡xPresidents‡9 50 The short answer is that LinkerOptions is linking in unexpected ways, and possibly conflicting with LinkerModule. -- You are receiving this mail because: You are the assignee for the bug. You are watching all bug changes.