Handling DCQL Queries Without the claims Field

How should a Wallet correctly handle a DCQL query in which the claims parameter is omitted from the credential query?

Case 1: mso_mdoc

{
  "dcql_query": {
    "credentials": [
      {
        "id": "query_0",
        "format": "mso_mdoc",
        "meta": {
          "doctype_value": "eu.europa.ec.eudi.pid.1"
        }
      }
    ]
  },
  "nonce": "136075ef-8f35-469e-8e11-5ebdced7317e",
  "request_uri_method": "get",
  "profile": "openid4vp",
  "authorization_request_uri": "openid4vp://"
}

How should this request be handled for an mso_mdoc credential?

Should the Wallet return a DeviceResponse containing the IssuerAuth, including its protected header and signature, but without any issuer-signed namespaces or data elements?

In other words, should the nameSpaces object be empty or omitted while the issuer authentication data is still included?

or do not return any credentials at all?

Case 2: dc+sd-jwt

{
  "dcql_query": {
    "credentials": [
      {
        "id": "query_0",
        "format": "dc+sd-jwt",
        "meta": {
          "vct_values": [
            "urn:eudi:pid:1"
          ]
        }
      }
    ]
  },
  "nonce": "b58bc78e-5063-46ee-82df-e6ef27d93c69",
  "request_uri_method": "get",
  "profile": "openid4vp",
  "authorization_request_uri": "openid4vp://"
}

How should this request be handled for a dc+sd-jwt credential?

Should the Wallet return:

• the issuer-signed JWT, including its header, payload, and signature;
• the Key Binding JWT, including its header, payload, and signature;
• no disclosures?

Should the issuer-signed JWT payload remain unchanged, while only the disclosures are omitted? Or are any parts of the SD-JWT presentation expected to be empty when no claims are explicitly requested?

Start by comparing the two DCQL examples and the expected mso_mdoc and dc+sd-jwt presentation contents described in the issue. Document the decided behavior for omitted claims, including whether issuer authentication or signed JWTs remain present and whether namespaces or disclosures are empty or omitted.