[Feature] Prevent re-backuping server deleted assets

[Valenwe]

I have searched the existing feature requests, both open and closed, to make sure this is not a duplicate request.

• Yes

The feature

Phone backup is made through all found medias on installation. This means that if I install the phone's application, it will backup everything and might create tons of duplicates. Furthermore, deleting assets on the server make the phone's backup to backup them again.

Because I use an external library on Read Only with my pictures inside, I usually move my phone pictures to my external folders. But then when I move my phone's medias to my external library, the phone's application re-backup my moved files and create tons of duplicates.

The solution to this would be to keep track of backup-ed medias and not backup them again, even if they do not appear in the server. Because we know we already sent the media once, no need to send it again.

This feature looks like the one from here: #4169 but remains a different issue.

Platform

• Server
• Web
• Mobile

[bo0tzz]

#4282