`Failed validating 'oneOf' in schema['properties']['paths']['patternProperties']['^\\/']['patternProperties']['^(get|put|post|delete|options|head|patch|trace)$']['properties']['parameters']['items']:`

Reproduce the minimal OpenAPI 3.0 document with openapi-spec-validator 0.3.0 and 0.2.10, focusing on the referenced query parameter under paths / get. Check the OpenAPI parameter rules and validator behavior when example and examples are both present. Done means establishing whether the validator behavior matches the specification and documenting or correcting the discrepancy.

I get:

{'in': 'query', 'name': 'bar', 'example': '1', 'examples': {'1': {'summary': '1', 'value': '1'}, '2': {'summary': '2', 'value': '2'}}, 'schema': {'type': 'string'}} is not valid under any of the given schemas

Failed validating 'oneOf' in schema['properties']['paths']['patternProperties']['^\\/']['patternProperties']['^(get|put|post|delete|options|head|patch|trace)$']['properties']['parameters']['items']:
    {'oneOf': [{'$ref': '#/definitions/Parameter'},
               {'$ref': '#/definitions/Reference'}]}

On instance['paths']['/']['get']['parameters'][0]:
    {'$ref': '#/components/parameters/foo',
     'x-scope': ['file:///usr/share/ucs-test/73_udm-rest/openapi2.json']}

for

{
    "components": {
        "parameters": {
            "foo": {
                "in": "query",
                "name": "bar",
                "example": "1",
                "examples": {
                    "1": {
                        "summary": "1",
                        "value": "1"
                    },
                    "2": {
                        "summary": "2",
                        "value": "2"
                    }
                },
                "schema": {
                    "type": "string"
                }
            }
        }
    },
    "info": {
        "description": "",
        "title": "",
        "version": "1.0.0"
    },
    "openapi": "3.0.0",
    "paths": {
       "/": {
            "get": {
                "parameters": [
                    {
                        "$ref": "#/components/parameters/foo"
                    }
                ],
                "responses": { "200": {"description": "", "content": {"text/plain": {"schema": {"type": "string"}}}} }
            }
        }
    }
}

since openapi-spec-validator==0.3.0. It succeeded to validate with openapi-spec-validator==0.2.10.
If I remove one of example or examples from #/components/parameters/foo the validation succeeds.

Does openapi define them as mutually exclusive?
https://swagger.io/docs/specification/adding-examples/ doesn't seem to contain a mix. The swagger UI just sucks in displaying examples.