Swagger not showing all URL params with Schema.extend + discriminated union

const CommonParams = Schema.Struct({
  bob: Schema.optional(Schema.NumberFromString),
  alice: Schema.optional(Schema.NumberFromString),
});

const DiscriminatedParams = Schema.Union(
  Schema.Struct({
    foo: Schema.String,
    bar: Schema.NumberFromString,
  }),
  Schema.Struct({
    baz: Schema.Literal("hello", "world"),
  }),
);

const ExtendedParams = Schema.extend(
  CommonParams,
  DiscriminatedParams,
);

/**
 * type ExtendedParams = {
 *     readonly bob?: number | undefined;
 *     readonly alice?: number | undefined;
 * } & ({
 *     readonly foo: string;
 *     readonly bar: number;
 * } | {
 *     readonly baz: "hello" | "world";
 * })
 */
type ExtendedParams = typeof ExtendedParams.Type;