Improve support for definitions that have circular references

[erunion]

Currently with v5 there are a number of issues in codegen, and in oas, that are preventing us supporting circular references out of the gate. We should improve on this.

Here's an example API definition that fails with codegen: https://api.apis.guru/v2/specs/amazonaws.com/ce/2017-10-25/openapi.json

[gdonoso94]

Hi, I came across this problem too. Is there any update?

[erunion]

@gdonoso94 Unfortunately none at the moment.

[JwanKaro]

Are there any new developments regarding this issue?