message: fix: add extra deref step for anyOf/oneOf variants
  fixes
diff: @@ -161,7 +161,15 @@ export class SchemaModel {
  private initOneOf(oneOf: OpenAPISchema[], parser: OpenAPIParser) {
  this.oneOf = oneOf!.map((variant, idx) => {
  - const merged = parser.mergeAllOf(variant, this.pointer + '/oneOf/' + idx);
  + const derefVariant = parser.deref(variant);
  +
  + const merged = parser.mergeAllOf(derefVariant, this.pointer + '/oneOf/' + idx);
  +
  + // try to infer title
  + const title =
  + isNamedDefinition(variant.$ref) && !merged.title
  + ? JsonPointer.baseName(variant.$ref)
  + : merged.title;
  const schema = new SchemaModel(
  parser,
  @@ -169,12 +177,14 @@ export class SchemaModel {
  {
  // variant may already have allOf so merge it to not get overwritten
  ...merged,
  + title,
  allOf: [{ ...this.schema, oneOf: undefined, anyOf: undefined }],
  } as OpenAPISchema,
  this.pointer + '/oneOf/' + idx,
  this.options,
  );
  + parser.exitRef(variant);
  // each oneOf should be independent so exiting all the parent refs
  // otherwise it will cause false-positive recursive detection
  parser.exitParents(merged);
  