Some generated go code will never be reached

The generated go code contains lines which cannot be reached. The api_xxx.go files contain

    if localVarHttpResponse.StatusCode >= 300 {
        newErr := GenericSwaggerError{
            body: localVarBody,
            error: localVarHttpResponse.Status,
        }
        
        if localVarHttpResponse.StatusCode == 201 {
            var v ApiResponseDocument
            err = a.client.decode(&v, localVarBody, localVarHttpResponse.Header.Get("Content-Type"));
                if err != nil {
                    newErr.error = err.Error()
                    return localVarReturnValue, localVarHttpResponse, newErr
                }
                newErr.model = v
                return localVarReturnValue, localVarHttpResponse, newErr
        }

        if localVarHttpResponse.StatusCode == 403 {
....

The if clause checking for 201 will never be true because it is not >= 300

Swagger-codegen 2.4.28

java -jar swagger-codegen-cli.jar generate -i http://my-domain/restapi/swagger.yaml -l go -o /tmp/swagger-sdk-go/

Start with the generated api_xxx.go files and reproduce the output using the provided swagger-codegen-cli.jar command and input URL. Trace the Go generator template or entry point that emits the status-code checks, then verify generated code no longer contains a condition for status 201 inside the >= 300 branch.