Wrong escaping when using merge

[danicc097]

Description

Wrong escaping when using merge:

x-error-response: &x-error-response
  4XX:
    description: Error response
    content:
      application/json:
        schema:
          $ref: '#/components/schemas/HTTPError'
paths:
  /admin/ping:
    get:
      summary: Ping pongs
      operationId: AdminPing
      responses:
        "200":
          description: OK
          content:
            text/plain:
              schema:
                type: string
                example: pong
        !!merge <<: *x-error-response
      tags:
        - admin
components:
  schemas:
    HTTPError:
      description: represents an error message response.
      type: object
      properties:
        title:
          type: string
        detail:
          type: string
        status:
          type: integer
        error:
          type: string

results in:

 Ping: {
    responses: {
      /** @description OK */
      200: {
        content: {
          "text/plain": string;
        };
      };
      /** @description Error response */
      "4XX": {
        content: {
          "application/json": external["external[%22components[%22schemas%22][%22HTTPError%22]%22]"]; 
        };
      };
    };
  };

Environment:

• Ubuntu 20.04
• openapi-typescript v6.2.4
• Node v16.19.0

[drwpow]

This was fixed in a recent release. I’ve added a test (#1285) to ensure no regressions happen in the future :)