fix: add extra deref step for anyOf/oneOf variants

fixes #810

src/services/models/Schema.ts

@@ -161,20 +161,30 @@ 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,
  // merge base schema into each of oneOf's subschemas
  {
  // 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);