Name & alias mismatch in eDiscovery Premium

Ok, this has come up again. And again the results are limited to calendar invites, specifically exchange items where "message kind" = "meetings". The other commonality with the previous instance of this email alias/display name mismatch problem is that the one of the custodians in question shared their calendar with the other custodian at some point (I found proof of this through a content search on emails in their accounts that were sent to each other with the subject = "You're invited to share this calendar").

I think what's happening is when Ren Hoek <rhoek@companydotcom> shares his calendar with "view all items" permissions with Stimpy J. Cat <sjcat@companydotcom>, copies of all calendar items created by Ren appear in Stimpy's Exchange calendar folder as if Stimpy created them. In eDiscovery these are the items that appear as if the sender is this: "Stimpy J. Cat <rhoek@companydotcom>." I think that's what's happening.

Can someone from Microsoft please confirm?