Steps to replicate the issue (include links if applicable):
- Use yt-dlp to download https://www.youtube.com/watch?v=vfAHa5GBLio
- Try and upload it to commons via the upload wizard
What happens?:
The upload fails with An unknown error occurred in storage backend "local-swift-codfw".
What should have happened instead?:
The upload should have uploaded
Software version (skip for WMF-hosted wikis like Wikipedia):
Other information (browser name/version, screenshots, etc.):