[Koha] Can't make "RLIN" subfields hidden

[Doug Dearden]

I am attempting to create a framework with all of the subfields marked as hidden as a baseline for our librarian to use to create special frameworks where she wants only a few fields to display (for temporary items like ILL books for example).  I created a new framework named MT from the default, then ran this sql statement against it.

UPDATE `marc_subfield_structure` SET hidden='-6' WHERE `frameworkcode` = 'MT'

This almost created the empty framework.  There are still a number of tags/subfields that show up even though they have a -6 in the 'hidden' attribute.  They all have (RLIN) in the title, and it is always the subfield 9 that is showing.  For instance, tag 100$9 - MAIN ENTRY--PERSONAL NAME  * .

The others are tags 110, 111, 130, 440, 600, 610, 611, 630, 650, 651, 690, 691, 696, 697, 698, 699, 700, 710, 711, 730, 796, 797, 798, 799, 800, 810, 811, 830, 896, 897, 898, 899 .  It is always the subfield 9 that is showing.

The same thing happens when trying to hide one of these fields in the default framework.

RLIN is persistant.  Is it hardcoded somewhere perhaps?

Is there a way to hide these subfields?

Thanks,

Doug