Automatic On-Device Backup
This is a special automatic type of backup that only occurs when you retrieve your saved database from Dropbox. Automatically backing up your database will allow you to recover your work in the event the retrieval from Dropbox fails or is corrupted. The backup is done before the retrieval from Dropbox starts. This ensures you have a current backup you can fall back to in the event of a problem with the copy on Dropbox.