Missing field data.procuringEntity.identifier.legalName

Field data.procuringEntity.identifier.legalName should be present and required.

Now it considered as "Unknown field", during procedure creation.

Response:

{
    "message": {
        "procuringEntity": {
            "identifier": {
                "legalName": "Unknown field"
            }
        }
    }
}

Spec: https://confluence-sale.prozorro.org/pages/viewpage.action?pageId=50364622