Cannot read property 'used' of undefined at `populate`

[slax0rr]

Hello,

when trying to dispatch a request to the server using playground, the error occurs at:

Snowboard version: v3.7.1

apib:

FORMAT: 1A

# api

# Group Auth

## Auth Challenge [/auth/challenge/?app-id={client_id}]

### /auth/challenge/ [GET]

+ Parameters
    + client_id (string)

        OAuth2 Application/Client ID

+ Response 200 (application/json)

        {
            "challenge": "random string"
        }

[subosito]

Thanks for the report @slax0rr.

This has been fixed in 6ce8502 and released as part of v3.7.3.

Feel free to reopen if the issue persist.