AnyOf subschemas defined in refs don't get correct labels from createCombinatorRenderInfos

[DrewHoo]

Describe the bug

Consider this schema:

{
  type: 'object',
  properties: {
    widget: {
      anyOf: [
        {
          $ref: '#/definitions/Dua',
        },
        {
          $ref: '#/definitions/Lipa',
        },
      ],
    },
  },
  definitions: {
    Dua: {
      title: 'Dua',
      type: 'object',
      properties: { name: { type: 'string' } },
    },
    Lipa: {
      title: 'Lipa',
      type: 'object',
      properties: { name: { type: 'string' } },
    },
  },
};

When calling createCombinatorRenderInfos, the title of the subschemas is not reflected in the label for individual renderinfos.

Expected behavior

The label for individual renderinfos is informed by the title of the subschema.

Steps to reproduce the issue

I've got a test case in a PR I'm about to open, which fails without the change I'm introducing.

Screenshots

No response

In which browser are you experiencing the issue?

Node

Which Version of JSON Forms are you using?

v3.1.0

Framework

Core

RendererSet

Material, Vanilla, Other (please specify in the Additional context field)

Additional context

No response