$ref with JSON pointer containing `~1` (encoded `/`) not supported

[hiddewie]

I have document with a $ref for an operation of the form

openapi: 3.0.1
# ...
paths:
  /resource/test:
    $ref: `file.yaml#/paths/~1resource~1test`

and file.yaml contains

paths:
  /resource/test:
    summary: ... 
    description: ...
    # ...

Committee gives an error that the $ref is not an URI, while it is a valid URI with a fragment containing a JSON pointer.

If I make the $ref into something like file.yaml#/paths/resource, and replace the path in file.yaml with resource, it does work and Committee gives no errors.

JSON pointer spec: https://datatracker.ietf.org/doc/html/rfc6901