[BUG] allOf to generate a model

Created by: jaumard

I'm using this definition to simulate genericity of paging result:

responses:
        200:
          description: 'List of products for the shop'
          content:
            application/json:
              schema:
                title: ‘ProductList',
                allOf:
                  - $ref: '#/components/schemas/PaginateResults'
                  - type: object
                    properties:
                      results: 
                        type: array
                        items: 
                          $ref: '#/components/schemas/Product'

I'm expecting this to generate a ProductList model that contains PaginateResults and the additional one. Problem is that it doesn't generate ProductList at all only PaginateResults and Product. And the generated method return only a PaginateResults which is incorrect.

I checked under DefaultCodegen::getSchemaType and it return only the first allOf it found, I manage to check and return the title if it's set, but that's solve only half the problem as ProductList is still not generated :/ only the method definition is correct now

Any idea ?