Circular references in API

[PVMezencev]

Hi,
If domain.User contains properties: parent: $ ref: '# /definitions/domain.User', then I get the output

⢀⠀ 0/2A bug occurred.
Please report an issue on the 'test-openapi-plugin-spec' code repository and paste the following lines:

RangeError: Maximum call stack size exceeded
    at Array Iterator.next (<anonymous>)
    at Object.entries.map (/usr/local/lib/node_modules/test-openapi/build/src/utils/crawl.js:36:42)
    at Array.map (<anonymous>)
    at crawlChildren (/usr/local/lib/node_modules/test-openapi/build/src/utils/crawl.js:36:38)
    at crawlNode (/usr/local/lib/node_modules/test-openapi/build/src/utils/crawl.js:20:14)
    at crawlProperty (/usr/local/lib/node_modules/test-openapi/build/src/utils/crawl.js:47:25)
    at Object.entries.map (/usr/local/lib/node_modules/test-openapi/build/src/utils/crawl.js:37:1)
    at Array.map (<anonymous>)
    at crawlChildren (/usr/local/lib/node_modules/test-openapi/build/src/utils/crawl.js:36:38)
    at crawlNode (/usr/local/lib/node_modules/test-openapi/build/src/utils/crawl.js:20:14)

spec.yaml

definitions:
  domain.User:
    properties:
      parent:
        $ref: '#/definitions/domain.User'
      comments:
        type: string
      created_at:
        type: string
      deleted_at:
        type: string
      email:
        type: string
      id:
        type: integer
      is_active:
        type: boolean
      is_deleted:
        type: boolean
      number:
        type: string
      parent_id:
        type: integer
      parent_title:
        type: string
      parent_uuid:
        type: string
      password:
        type: string
      phone:
        type: string
      position:
        type: string
      title:
        type: string
      updated_at:
        type: string
      username:
        type: string
      uuid:
        type: string
      vendor_id:
        type: integer
      vendor_title:
        type: string
      vendor_uuid:
        type: string
    type: object
  webservices.ShowUserResponse:
    properties:
      _to:
        type: string
      errors:
        items:
          type: string
        type: array
      success:
        items:
          type: string
        type: array
      user:
        $ref: '#/definitions/domain.User'
      warnings:
        items:
          type: string
        type: array
    type: object
  webservices.ShowUsersResponse:
    properties:
      _to:
        type: string
      errors:
        items:
          type: string
        type: array
      success:
        items:
          type: string
        type: array
      users:
        items:
          $ref: '#/definitions/domain.User'
        type: array
      warnings:
        items:
          type: string
        type: array
    type: object
info:
  contact: {}
  description: ""
  title: ""
  version: ""
paths:
  /users:
    get:
      operationId: show-users
      parameters:
        - in: query
          name: vendor
          type: string
        - in: query
          name: parent
          type: string
        - in: query
          name: created_since
          type: string
        - in: query
          name: created_before
          type: string
        - enum:
            - administrator
            - manager
            - teacher
            - agent
            - contractor
            - listener
          in: query
          name: role
          type: string
        - in: query
          name: active_only
          type: integer
        - in: query
          name: without_orders_only
          type: integer
        - in: query
          maxLength: 32
          minLength: 3
          name: q
          type: string
        - in: query
          name: _page
          type: integer
      produces:
        - application/json; charset=utf-8
      responses:
        "200":
          description: OK
          schema:
            $ref: '#/definitions/webservices.ShowUsersResponse'
        "400":
          description: Bad Request
          schema:
            type: string
        "403":
          description: Forbidden
          schema:
            type: string
        "404":
          description: Not Found
          schema:
            type: string
        "500":
          description: Internal Server Error
          schema:
            type: string
      security:
        - ApiKeyAuth: []
  /users/{user}:
    get:
      operationId: show-user
      parameters:
        - in: path
          name: user
          required: true
          type: string
      produces:
        - application/json; charset=utf-8
      responses:
        "200":
          description: OK
          schema:
            $ref: '#/definitions/webservices.ShowUserResponse'
        "400":
          description: Bad Request
          schema:
            type: string
        "403":
          description: Forbidden
          schema:
            type: string
        "404":
          description: Not Found
          schema:
            type: string
        "500":
          description: Internal Server Error
          schema:
            type: string
      security:
        - ApiKeyAuth: []
securityDefinitions:
  ApiKeyAuth:
    in: header
    name: X-Auth-token
    type: apiKey
swagger: "2.0"

tasks.yaml

- name: getUsers
  call:
    server: http://localhost
    headers.x-auth-token: <token>
    headers.accept: application/json
  spec:
    operation: show-users
    definition: spec.yaml
- name: getUser
  call:
    server: http://localhost
    headers.x-auth-token: <token>
    headers.accept: application/json
    url.user: <userId>
  spec:
    operation: show-users
    definition: spec.yaml

Checking the validity of my API says:

This API is valid, but it cannot be shown because it contains circular references