Choice<A,B> generates crazy JSON Schema

[varon]

type TestRecord = { Example: Choice<string, int> }

This generates the following crazy schema:

{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "TestRecord",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "example": {
      "$ref": "#/definitions/FSharpChoiceOfStringAndInteger"
    }
  },
  "definitions": {
    "FSharpChoiceOfStringAndInteger": {
      "definitions": {
        "Choice1Of2": {
          "type": "object",
          "additionalProperties": false,
          "required": [
            "kind",
            "item"
          ],
          "properties": {
            "kind": {
              "type": "string",
              "default": "Choice1Of2",
              "x-enumNames": [
                "Choice1Of2"
              ],
              "enum": [
                "Choice1Of2"
              ]
            },
            "item": {
              "type": "string"
            }
          }
        },
        "Choice2Of2": {
          "type": "object",
          "additionalProperties": false,
          "required": [
            "kind",
            "item"
          ],
          "properties": {
            "kind": {
              "type": "string",
              "default": "Choice2Of2",
              "x-enumNames": [
                "Choice2Of2"
              ],
              "enum": [
                "Choice2Of2"
              ]
            },
            "item": {
              "type": "integer",
              "format": "int32"
            }
          }
        }
      },
      "anyOf": [
        {
          "$ref": "#/definitions/FSharpChoiceOfStringAndInteger/definitions/Choice1Of2"
        },
        {
          "$ref": "#/definitions/FSharpChoiceOfStringAndInteger/definitions/Choice2Of2"
        }
      ]
    }
  }
}

But the expected output should be:

{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "TestRecord",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "example": {
      "type": [
        "integer",
        "string"
      ]
    }
  }
}

F# 7.0, .NET 7.0, FSharp.Data.JsonSchema 2.0.2