Unable to parse a contract with a raw object

[glandais-nickel]

In a DTO modeling an error, we have parameters in it, used to format error message to user for instance.

As this parameter can be a number, a string or whatever, we have something like this in our contract :

components:
  schemas:
    Problem:
      type: object
      properties:
        title:
          type: string
        params:
          type: object
          additionalProperties:
            type: object

But the generator is unable to narrow a Type for params values. A workaround has been to add a format: json on additionalProperties in our contract but it is not a viable solution on the long term. It eventually allows to generate correctly our other clients, but this is not what we want to see here.