Exporting with language tags

[fbrckman]

Exporting to Turtle with language tags does not yield the expected result.

Result:

<http://www.w3.org/ns/shacl#name> "given name"^^<http://www.w3.org/1999/02/22-rdf-syntax-ns#langString>;

Expected:

<http://www.w3.org/ns/shacl#name> "given name"@en;

In the JSON-LD representation, the language tags are saved as they should be:

{
    "@value": "given name",
    "@language": "en"
}

resolveRDFJSTerm(quads[i].object) in n3Serializer.serialize() yields the following:

"\"given name\"^^http://www.w3.org/1999/02/22-rdf-syntax-ns#langString"