test-fixtures/sort-subfields/v02/record.json
{
"fields": [
{ "tag": "001", "value": "f01" },
{ "tag": "028", "ind1": " ", "ind2": " ", "subfields": [ { "code": "b", "value": "Bar Records"}, {"code": "a", "value": "BARCD-1"}]},
{ "tag": "028", "ind1": " ", "ind2": " ", "subfields": [ {"code": "a", "value": "BARCD-2"}, { "code": "b", "value": "Bar Records"}]}
],
"leader": ""
}