Backup rotation does not delete unnecessary ones after decreasing `backupDepth`

[proninyaroslav]

Previously, I used the default depth == 7, but decided to switch to 3. But after the backup, I still see extra folders with system files (backup.4, 5, 6, 7). Can I safely remove them?

[pedroetb]

This should be tested first to be sure, but I think it will be safe to remove old directories when you reach at least 4 backups (for depth == 3).

Please, be careful if you test this!

[proninyaroslav]

Please, be careful if you test this!

How can I check if the integrity of the backup is broken after this?

[pedroetb]

Please, be careful if you test this!

How can I check if the integrity of the backup is broken after this?

Looking for a file which has reached the new last stage of backup and had previous changes beyond that stage . If it's not there or it's not at expected state, then there is a problem.