[SWAGGER] No longer generates JSON that is alphabetically sorted from YAML

Description

We used to get alphabetical ordering for our endpoints before the 2.2.2 Release we took.

Swagger-codegen version

v2.2.2

Swagger declaration file content or url

https://wind.ibmcloud.com/api/v2/swagger/swagger.yaml
Was generating:
https://wind.ibmcloud.com/api/v2/swagger/swagger.json
But now generates the json with the endpoints appearing as they do in the yaml. We would prefer not to manually sort these.

Command line used for generation

docker run -it \
-v $WORKINGDIR/container:/swagger-api/out \
-v $WORKINGDIR/container:/swagger-api/yaml \
jimschubert/swagger-codegen-cli \
generate \
-i /swagger-api/yaml/swagger.yaml \
-l swagger \
-o /swagger-api/out

Steps to reproduce

Running the docker command above using the yaml found at the uri provided.

Related issues

https://github.com/jimschubert/swagger-codegen-cli.docker/issues/2#issuecomment-283811706

Suggest a Fix

Only thing I saw related to ordering:
https://github.com/swagger-api/swagger-codegen/pull/4191 and https://github.com/swagger-api/swagger-codegen/pull/4191/commits/c386da6ded5df709d714f538656a44ceb39b8bad

Start by running the provided Docker command with the Swagger YAML at the linked URL and compare its JSON endpoint order with the YAML. Trace the Swagger generation path responsible for YAML-to-JSON conversion; done means the generated JSON endpoints are alphabetically sorted without manual reordering.