Version 3.0.39 on Azure Functions with OpenAPI spec give 'No operations defined in spec!'

[saraaraujo-shell]

On upgrading from version 3.0.37 to 3.0.39, the swagger file automatically generated on an Azure Function with OpenAPI spec comes with empty paths

Repro steps

Provide the steps required to reproduce the problem

1. Set up a HTTP triggered azure function with Open API annotations
2. Install version 3.0.39 of Microsoft.Azure.WebJobs
3. Run the function and open the /api/swagger/ui path

Expected behavior

The Swagger file to be automatically generated with the OpenAPI annotations given

Actual behavior

'No operations defined in spec!' error

Known workarounds

Works fine on version 3.0.37

• Package version
  3.0.39