🐛[Bug] Infinite folder recursion

[tofof]

Steps to reproduce:

1. Set Backup to: to .\autover_backups (note: single period)
2. Checkmark Include sub folders
3. Checkmark Create initial backup
4. OK dialog asking to create backup directory Observe infinite creation of nested 'autover_backups' folders.

Expected behavior: backup folder can reside within watched folder (and is ignored). Worse alternative expected behavior: error if attempting to place backup folder within watched folder.