enum values not displayed in example/model view (resubmitted using template)

ENUM values in the schema definition are not displayed in the example/model view sections of the swagger-ui page.

Q	A
Bug or feature request?	Bug
Which Swagger/OpenAPI version?	2.0
Which Swagger-UI version?	3.3.1
How did you install Swagger-UI?	embedded in swagger-tools module
Which browser & version?	Safari Version 11.0 (12604.1.38.1.7)
Which operating system?	macOS Sierra Version 10.12.6 (16G29)

Demonstration API definition

accessTokenReq:
    type: object
    properties:
      grant_type:
        enum:
          - client_credentials
      client_id:
        type: string
      client_secret:
        type: string

Expected Behavior

Rendered by UI:

Example section:

{
  "grant_type": "client_credentials",
  "client_id": "string",
  "client_secret": "string"
}

Model section

accessTokenReq { 
  grant_type  = ['client_credentials'],
  client_id | string
  client_secret | string
}

Current Behavior

Rendered by UI:

Example section:

{
  "client_id": "string",
  "client_secret": "string"
}

Model section

accessTokenReq {
  grant_type {
  }
  client_id | string
  client_secret | string
}

Possible Solution

Context

[webron]

While this is a bug, you can easily overcome it by explicitly adding the type.

  accessTokenReq:
    type: object
    properties:
      grant_type:
        type: string
        enum:
          - client_credentials
      client_id:
        type: string
      client_secret:
        type: string

[dakl]

Any updates in this issue?