I think this is a feature request, rather than a bug, so here goes. I have three PCs, one desktop, and two laptops, all with Outlook 2010 v 14.0.7172.5000 installed. I use the laptops at different times and places, but they all replicate to an Exchange server. Normally, only one PC is connected to the Exchange server.
I find that if I have Outlook CalDav Synchronizer (v2.5.0.0 on all machines) running on all the different instances of Outlook, which I use to sync to Google Calendar, on the first OCDS sync, a new version of any existing calendar entry is created in whichever Outlook I am using, except if the calendar entry was created on that machine. This then replicates both to the Exchange server and to Google Calendar.
Short of leaving Outlook running permanently on one PC with OCDS syncing to Google, and not using OCDS on the other two PCs, is there any way to stop this multiple replication?