test-fixtures/addMissingField338/cr4/expectedResult.json
{
"_validationOptions": {},
"leader": "12345cdm a22123454i 4500",
"fields": [
{ "tag": "008", "value": "012345s2000 xxu|||||o|||||||||||fin| " },
{ "tag": "300", "ind1": " ", "ind2": " ", "subfields": [
{ "code": "a", "value": "whatever" }
]},
{ "tag": "338", "ind1": " ", "ind2": " ", "subfields": [
{ "code": "a", "value": "verkkoaineisto" },
{ "code": "b", "value": "cr" },
{ "code": "2", "value": "rdacarrier" }
]}
]
}