[Koha] Follett -> KOHA --- 050 field issues

[Cab Vinton]

> Koha will support multiple 952 records - they are your item records and
> are repeatable.

One point of interest here --

If the catalog already has records with some 952 tags, those tags will
not be overwritten. New items will be added.

We discovered this the hard way when we wanted to fill in some 952
tags that had missing subfields.

Cab Vinton, Director
Sanbornton Public Library
Sanbornton, NH