[Plugin: WordPress Backup to Dropbox] Deleted files not synced

Love the plugin, but it doesn’t seem to sync deleted files.

If I delete a file in WordPress (e.g., through the media manager), it doesn’t get removed from Dropbox. The backup is now no longer synced with the source.

Is this working as intended?

http://ww.wp.xz.cn/extend/plugins/wordpress-backup-to-dropbox/