I am interested to know if there is any detailed information on program Rerun behavior with regards to migrating package/advertisements to ConfigMgr 2012? In my testing it seems that advertisements with program rerun behavior configured for Always Rerun seem to rerun after the SCCM client has been upgraded to SCCM 2012. I can verify that the program had successfully run when it was in the 2007 environment. It's my understanding that these should not rerun as the client GUID and program Ids are maintained during client upgrade.
Advertisements with program rerun behavior configured with other options do not appear to run after the SCCM client has been upgraded.
Is there any correlation to this setting and post migration of client and packages/advertisements, or am I seeing a symptom of something else?
Thanks.