"Difference found" in backup.py --verify: what to do about it?

I have setup rsync backups and wanted to confirm that things were working correctly, so I run ‘management/backup.py --verify’.

Several instances of seemingly minor differences were found, such as dates that were different by seconds, or ‘ab is missing’. Nothing that made me worry. Nonetheless, I was wondering if there was something that I should do about it?

While on the subject of backups, I’d like to understand the behaviour of the backup system when using Rsync. My understanding was that a local backup was done first, and then that backup is uploaded via Rsync. Is that correct?