From @ntra00:
For records with a 380, it runs conv spec 3xx, and seems to apply templates mode=xmllang on the current subfield(380$a) for vxmllang, instead of sending in the parent datafield.
I’m not sure if there are repercussions from sending it the parent marc:datafield, but I think it needs to be done because xmllang mode is only available for marc:datafields.
From @ntra00: For records with a 380, it runs conv spec 3xx, and seems to apply templates mode=xmllang on the current subfield(380$a) for vxmllang, instead of sending in the parent datafield.
This match in utils sets it up:
…
http://c2vlsmprxy02.loc.gov:210/lcdb?operation=searchRetrieve&version=1.1&query=rec.id=19612688&recordSchema=bibframe2a-dev&maximumRecords=1
I’m not sure if there are repercussions from sending it the parent marc:datafield, but I think it needs to be done because xmllang mode is only available for marc:datafields.