swagger-spec-validator 2.2.0 breaks the test project

[slurms]

Unsure if this is an issue with the test project specifically, but just pointing it out.

Running with swagger-spec-validator 2.2.0 under Python 3.6 with the instructions for running the test project in the README. After making a request for localhost:8000/cached/swagger/?format=openapi, the view gives this error:
{"errors": {"ssv": "Duplicate operationId: todo_yetanother_read"}, "message": "spec validation failed"}.

I can confirm that when using swagger-spec-validator 2.1.0 it works as expected.

[slurms]

This is because of the nested url structure here: https://github.com/axnsan12/drf-yasg/blob/master/testproj/todo/urls.py#L16.

[slurms]

👍 thanks!