skos:notation with language tags in

[ioggstream]

When

• open link https://schema.gov.it/lodview/social-security/controlled-vocabulary/CUStatement/codice_titolo_erogazione_tfr/A

Then

• skos:notation has a language tag

<italia/social-security/controlled-vocabulary/CUStatement/codice_titolo_erogazione_tfr/A>
        rdf:type            skos:Concept;
        rdfs:label          "se si tratta di anticipazione;"@it;
        dcterms:identifier  "A"@it;
        skos:inScheme       <italia/social-security/controlled-vocabulary/CUStatement/codice_titolo_erogazione_tfr>;
        skos:notation       "A"@it;
        skos:prefLabel      "se si tratta di anticipazione;"@it .

Instead

Reading SKOS Primier
I read

Notations are symbols which are not normally recognizable as words or sequences of words in any natural language and are thus usable independently of natural-language contexts.

Moreover in SKOS
I read

There is no such thing as an RDF literal with both a language tag and a datatype URI, i.e., a typed literal does not have a language tag, and a plain literal does not have a datatype URI.

Is this intented?

Notes

Not sure if dcterms:identifier allows language tags too.