The considerations part of the document I've found to include some really weird "considerations" for things that shouldn't ever be an issue, and I think this is just another example of that. You're absolutely correct that this would already cause validation failures and really shouldn't need to be part of any considerations prior to upgrading to PAN-OS 10, as the commit validation process would already have been failing.
@BPry we have faced commit error in panorama after upgrading it to 10.0.5 for duplicate address object and service object in address group and service group respectively.
Config commited successfully in firewall, but while pushing to devices got below error:
1st error for duplicate address objects in address group. There was two address object of same name , one created in shared and another in device group. And both were added in same device group.
Removed one address from that group to resolve the issue.
2nd error was for duplicate service object which was same like first.
Luckily we had only two duplicate objects , hence got only two errors.
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