Text to go in the release notes:
This new enhancement adds the ability to change the default order the subfields.
Both bibliographic and authority MARC subfield structure are taken into account. And so the item edition as well.
This will answer, for instance, the following needs:
- $i in 7xx fields should be the first subfield in the sequence
- 300 fields are sorted number first when cataloguers enter the letter fields first
- 100 field, it's commonly $a, $q, $d.