Preview image file removed for Live when replay thumbnail updated

[kntndrsn]

Describe the current behavior

When a replay of a permanent live is saved, it references the preview image of the live. If you change the thumbnail on the replay, it appears to remove the preview image file of the live.

Example Live: https://video.bbccolumbus.com/w/wT9mi5VQ3N2RHTrQ87TjqN

Steps to reproduce

1. Setup live with a custom thumbnail image.
2. Initiate live and finish to create replay.
3. Change thumbnail on replay.
4. Original live preview image file will be gone. (thumbnail image file will still be there)

Describe the expected behavior

1. Previous to 6.3, replays would generate their own thumbnail and preview images. However, at a minimum, it shouldn't delete the preview image file of the original live when you change the thumbnail of a replay.

Additional information

• PeerTube instance:

  • URL:
  • Version: 6.3.2
  • NodeJS version: 21.7.3
  • Ffmpeg version: 4.4.2-0ubuntu0.22.04.1

• Browser name, version and platforms on which you could reproduce the bug:

• Link to browser console log if relevant:

• Link to server log if relevant (journalctl or /var/www/peertube/storage/logs/):