JSON parsing error when fetching a playlist with user's own local track

[matous-volf]

Describe the bug
When a playlist contains a track that has been added from local files and I try to fetch it using rspotify's playlist method, it returns

ParseJson(
    Error("data did not match any variant of untagged enum PlayableItem", line: 1, column: 94835),
)

To Reproduce
Steps to reproduce the behavior:

1. Add a local file to your Spotify account.
2. Add the track into a playlist.
3. Fetch the playlist using the playlist method.