Fix Error Handling on Non-Existing Patient

[alexanderkiel]

Problem

In case the $everything operation is called on a non-existing patient, a 200 with an empty bundle instead of a 404 with an OperationOutcome is returned.

Current Behaviour

In case the $everything operation is called on a non-existing patient, a 200 with an empty bundle is returned.

Example

curl -H "Accept: application/fhir+json" "[base]/Patient/150158/$everything" 

{
    "resourceType": "Bundle",
    "id": "DCSQ4ASBATVWSO6O",
    "type": "searchset",
    "total": 0
}

Expected Behaviour

A 404 with an OperationOutcome should be returned.

Example

curl -H "Accept: application/fhir+json" "[base]/Patient/150158/$everything" 

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "error",
      "code": "not-found",
      "diagnostics": "The Patient with id `150158` was not found."
    }
  ]
}