date range for conversion from bf2marc

[jimfhahn]

Seems to be an edtf datatype issue.

I'm looking at a misalignment of what is presently in the BF ontology and what the converter (BF2MARC v2.7) expects. The current https://id.loc.gov/ontologies/bibframe/date.rdf has a literal value as the range.

However, the converter (2.7) from BF to MARC seems to expects the following in the provision activity:

    <bf:date rdf:datatype="http://id.loc.gov/datatypes/edtf">1960/1961</bf:date>

in order to generate this MARC:

<marc:controlfield xml:space="preserve" tag="008">240826m19601961dk a 00| 0|eng </marc:controlfield>