Swagger UI: Allow setting an example with the `null` value (even if it is not part of the type)

Q&A (please complete the following information)

• OS: [e.g. macOS]
• Browser: [e.g. chrome, safari]
• Version: [e.g. 22]
• Method of installation: [e.g. npm, dist assets]
• Swagger-UI version: [e.g. 3.10.0]
• Swagger/OpenAPI version: [e.g. Swagger 2.0, OpenAPI 3.0]

OAS 3.1, Swagger UI 5.31.2

Content & configuration

Swagger/OpenAPI definition:

# your YAML here

Swagger-UI configuration options:

SwaggerUI({
  // your config options here
})

What FastAPI+Pydantic provides, but with vendored assets

?yourQueryStringConfig

Screenshots

How can we help?

I have

          "success": {
            "type": "boolean",
            "title": "Success",
            "default": false
          },

But I would like the rendered default to be null - even if the type of the argument is success: bool (or, at least with success: bool | None = None (PS: Python)

IIUC, partially of the code responsible is here https://github.com/swagger-api/swagger-ui/blob/cc408812fc927e265da158bf68239530740ab4cc/src/core/plugins/samples/fn.js#L6-L19

Start in src/core/plugins/samples/fn.js at the referenced sample-generation code and inspect how default values are selected for the OAS 3.1 example. Reproduce the supplied boolean property case, then verify that a configured null default renders as null even when null is not included in the type.