Why are my WordPress assets duplicated when I resync them using the Cloudinary plugin?

WordPress stores assets in Year/Month format, which means that assets with the same filename can be present in different folders in WordPress. Uploading assets with the same filename into the same Cloudinary folder causes the files to overwrite each other.

For this reason, triggering a resync of an asset causes the Cloudinary plugin to duplicate the asset and add a suffix. To find those duplicates, you can search for the guid contextual metadata value in Cloudinary, which is a hash of the WordPress GUID. If they're identical, it means the assets are actual duplicates. If they're different, it means that while the image can be identical, the GUID in WordPress is different.