allOf will print object(nameOfFirstTypeInAllOf)

[cmeeren]

The following:

properties:
  username:
    allOf:
      - $ref: '#/components/schemas/ConstraintAuthorized'
      - $ref: '#/components/schemas/ConstraintWritable'

will render as:

As you can see, the type name of the first allOf reference is rendered, which is incorrect. I'd expect no type name to be rendered when (multiple) references are used in allOf.