XADM: Exchange Generates A Conflict for Same Public Folder Replica

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If you save multiple changes to the same item on a single public folder replica, an item conflict notification with the contents of both versions of the item is generated and sent to the owner of the public folder. The owner can then manually resolve the conflict. In previous versions of Microsoft Exchange Server, an item conflict notification is only generated if an item change is simultaneously saved on different replicas of a public folder.

An item conflict notification is sent to both the owner of the public folder and the mailbox that creates the conflict.