[Java - Spring] @Api 's description is not the designing tag's description

Description

For the Petstore example, use the swagger.json generate spring api code, event using the SwaggerHub(https://app.swaggerhub.com) to export code, the @Api description is not the tags description .

swagger.json pet's description is "Everything about your Pets":

tags:
- name: pet
  description: Everything about your Pets
  externalDocs:
    description: Find out more
    url: http://swagger.io
- name: store
  description: Access to Petstore orders
- name: user
  description: Operations about user
  externalDocs:
    description: Find out more about our store
    url: http://swagger.io

But the api source code PetApi.java 's description is "the pet API",

@Api(value = "pet", description = "the pet API")
public interface PetApi {

}

and other *Api.java 's description is "the * API".

Is the tag's description never used?

Swagger-codegen version

2.3.1 and newer.
Also build with source code

Reproduce the Petstore example using swagger.json and the Spring export, then compare the tag description with the generated PetApi.java @Api description and the other *Api.java files. Trace how the generator handles tag descriptions and confirm that the completed change uses each tag's description instead of the generic "the * API" text.