OpenAPI generator: oneOf with array of strings

oneOf-array-of-strings.yaml

openapi: 3.0.0
info:
  title: API
  version: 1.0.0
servers:
  - url: https://example.com
paths:
  /foo:
    patch:
      requestBody:
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/Bar"
      responses:
        "204":
          description: "No Content"
components:
  schemas:
    Bar:
      description: dolor sit amet
      properties:
        prop:
          oneOf:
            - description: "Option one"
              type: string
              format: date-time
            - description: "Option two"
              type: array
              items:
                type: string