[Typescript-Node] - Referencing an enum definition from another definition does not output an enum

Description

Referencing an enum definition from another definition does not output an enum

Swagger-codegen version

2.4.1-SNAPSHOT

Swagger declaration file content or url

swagger: '2.0'

info:
  version: "2.0.1"
  title: API
  description: API

tags:
  - name: ignore-v1
    description: "Ignored items related APIs"

basePath: /api/v1
schemes:
  - https
consumes:
  - application/json
produces:
  - application/json

paths:      
  /api/v1/ignore/rules/{ruleId}:
      put:
        tags:
          - ignore-v1
        description: Update ignore rule.
        produces:
          - application/json
        parameters:
          - name: ruleId
            in: path
            description: The ignore id of the item to update.
            required: true
            type: string
          - name: body
            in: body
            description: ignore request.
            required: true
            schema:
               $ref: '#/definitions/update-ignore-request'
        responses:
          200:
            description: Rule updated successfully.
          400:
            description: Bad request. Missing parameters or path not valid.
          409:
            description: Rule already exists.
          500:
            description: Internal server error.

definitions:
  update-ignore-request:
    type: object
    properties:
      pattern: 
        type: string
        example: /src/mwysfolder
      condition: 
          $ref: '#/definitions/ignore-condition'
      reason: 
        type: string
        example: ctor

  ignore-condition:
      type: string
      enum:
        - StartsWith
        - EndsWith
        - ExactMatch
        - Contains
      example: ExactMatch

Command line used for generation

java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate
-i api.yml
-l typescript-node
-o samples/client/typescript-node

Steps to reproduce

save the above spec as api.yml and run the above command.

Related issues/PRs

None that I could find.

Suggest a fix/enhancement

print warnings to console explaining why an enum was not created as an enum

Reproduce the issue with the supplied api.yml and the swagger-codegen CLI command targeting samples/client/typescript-node. Start by tracing the typescript-node generator's handling of the referenced ignore-condition definition, then inspect the generated model output. Done means the referenced enum is represented correctly, or the generator emits the requested explanatory warning.