**Describe the bug** All extra data in track.data is gone. For example the dash and hls keys are empty. Before this commit, it worked fine: **[refactor(Track): Ensure data property is a defaultdict with dict factory](https://github.com/devine-dl/devine/commit/f419e04fadfa6cdd3c084b9b155c8df1ae9e457d)** **To Reproduce** Try to access the dash / hls key: `track.data["dash"]["manifest"]` **Screenshots** 
Describe the bug
All extra data in track.data is gone. For example the dash and hls keys are empty.
Before this commit, it worked fine:
refactor(Track): Ensure data property is a defaultdict with dict factory
To Reproduce
Try to access the dash / hls key:
track.data["dash"]["manifest"]Screenshots
