If for any reason thumbnails does not get created, and this module is enabled, regenerating thumbnail deletes the source file. It is because, if thumbnail is not found, it returns the source file here:
https://git.drupalcode.org/project/media_thumbnails/-/blob/8.x-1.x/src/P...
This is risky because it deletes the source file.
* have a media without a thumbnail
* regenerate the thumbnails
* Perhaps check if field_name is thumbnail, if so, return null if not found.
Active
2.0
Code
After this is merged, a 2.x branch needs to be created so that issue forks can be created from it.