OpenAPI/Swagger file has invalid JSON pointer syntax

Steps to reproduce

Go to https://apitools.dev/swagger-parser/online/
Attempt validation using https://docs.funkwhale.audio/swagger/swagger.yml
Error happens

What happens?

An error occurs.

Invalid $ref pointer "OAuthApplication". Pointers must begin with "#/"

Error: Invalid $ref pointer "OAuthApplication". Pointers must begin with "#/"
    at o (https://apitools.dev/swagger-parser/online/js/bundle.min.js:1:73766)
    at https://apitools.dev/swagger-parser/online/js/bundle.min.js:17:227596

SyntaxError: Invalid $ref pointer "OAuthApplication". Pointers must begin with "#/"
    at Function.o [as syntax] (https://apitools.dev/swagger-parser/online/js/bundle.min.js:1:73766)
    at Function.Pointer.parse (https://apitools.dev/swagger-parser/online/js/bundle.min.js:1:23112)
    at Pointer.resolve (https://apitools.dev/swagger-parser/online/js/bundle.min.js:1:22228)
    at $Ref.resolve (https://apitools.dev/swagger-parser/online/js/bundle.min.js:1:23871)
    at $Refs._resolve (https://apitools.dev/swagger-parser/online/js/bundle.min.js:1:26088)
    at dereference$Ref (https://apitools.dev/swagger-parser/online/js/bundle.min.js:1:13257)
    at crawl (https://apitools.dev/swagger-parser/online/js/bundle.min.js:1:12993)
    at crawl (https://apitools.dev/swagger-parser/online/js/bundle.min.js:1:13070)
    at crawl (https://apitools.dev/swagger-parser/online/js/bundle.min.js:1:13070)
    at crawl (https://apitools.dev/swagger-parser/online/js/bundle.min.js:1:13070)

What is expected?

Successful validation

Context

I'm attempting to create a bridge between my Sonos set up at home and my Funkwhale installation. I've already got a semi-working set up using Funkwhale's implementation of the Subsonic API however Funkwhale's API appears to be a better API to use, especially as the Subsonic API lacks pagination.

However, the swagger.yml file (and its dependencies) have incorrect JSON pointers, causing errors:

Example:

- $ref: "./api/definitions.yml#OAuthApplication"

Should be:

- $ref: "./api/definitions.yml#/OAuthApplication"

Funkwhale version(s) affected: Latest?