DomainResource-text SearchParameter is rejected

[JohnMoehrke]

NOTE: Before filing a ticket, please see the following URL:
https://github.com/hapifhir/hapi-fhir/wiki/Getting-Help

Describe the bug
I have been submitting FHIR Core SearchParameter resources (derived from FHIR R4) with status set to retired in order to turn off search indexing where I don't need it. This works except for the DomainResource-text SearchParameter.

The DomainResource-text SearchParameter is base on DomainResource, as that is where the _text element exists.

When submitting this I get a "500 Internal Server Error", with the diagnostics indicating that it failed because DomainResource does not exist.

To Reproduce
Steps to reproduce the behavior:

1. Create a SearchParameter consistent with DomainResource-text

Expected behavior
Should be accepted as DomainResource exists as much as any.

Screenshots
NA

Environment (please complete the following information):

• HAPI FHIR Version
• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]

Additional context

{

            "response": {

                "status": "500 Internal Server Error",

                "outcome": {

                    "resourceType": "OperationOutcome",

                    "text": {

                        "status": "generated",

                        "div": "<div xmlns=\http://[www.w3.org/1999/xhtml](http://www.w3.org/1999/xhtml)\><h1>Operation Outcome</h1><table border=\"0\"><tr><td style=\"font-weight: bold;\">ERROR</td><td>[]</td><td>HAPI-1684: Unknown resource name &quot;DomainResource&quot; (this name is not known in FHIR version &quot;R4&quot;)</td></tr></table></div>"

                    },

                    "issue": [

                        {

                            "severity": "error",

                            "code": "exception",

                            "diagnostics": "HAPI-1684: Unknown resource name \"DomainResource\" (this name is not known in FHIR version \"R4\")"

                        }

                    ]

                }

            }

        },

[JohnMoehrke]

Note I also filed for clarification in FHIR core
FHIR-49657: SearchParameter on DomainResource seems improper:

[JohnMoehrke]

Note if you change the base to Resource it will succeed.