FHIR Bundle.entry.response.status is missing response code (display only)

[reinkrul]

It now only shows, for instance, "Created" instead of "204" or "204 Created".

According to the spec, the response status field must start with the numeric status code:

The status code returned by processing this entry. The status SHALL start with a 3 digit HTTP code (e.g. 404) and may contain the standard HTTP description associated with the status code.

(https://hl7.org/fhir/R4/bundle-definitions.html#Bundle.entry.response.status)

Steps to reproduce

Request:

POST http://localhost:57715/fhir/r4
Content-Type: application/fhir+json

{
  "resourceType": "Bundle",
  "type": "transaction",
  "entry": [
    {
      "request": {
        "method": "POST",
        "url": "Patient"
      },
      "resource": {
        "resourceType": "Patient",
        "id": "example"
      }
    }
  ]
}

Yields:

HTTP/1.1 200 OK
Content-Type: application/fhir+json
Date: Mon, 10 Feb 2025 06:27:33 GMT
Server: Kestrel
Transfer-Encoding: chunked

{
  "resourceType": "Bundle",
  "id": "5b0fbbe3-646f-4788-ba79-593b7f01e06f",
  "type": "transaction-response",
  "entry": [
    {
      "resource": {
        "resourceType": "Patient",
        "id": "f53ed2c1-72bb-4e18-964e-793bc004df6f",
        "meta": {
          "versionId": "1",
          "lastUpdated": "2025-02-10T06:27:34.312553+00:00"
        }
      },
      "response": {
        "status": "Created",
        "location": "http://localhost:5826/fhir/r4/Patient/f53ed2c1-72bb-4e18-964e-793bc004df6f",
        "etag": "W/\"1\"",
        "lastModified": "2025-02-10T06:27:34.312553+00:00",
        "outcome": {
          "resourceType": "OperationOutcome",
          "id": "dc16f15a-5c77-45da-ba9c-32fc421817cb",
          "issue": [
            {
              "severity": "information",
              "code": "success",
              "diagnostics": "Created Patient/f53ed2c1-72bb-4e18-964e-793bc004df6f"
            }
          ]
        }
      }
    }
  ]
}