Forticlient (IPSEC) - Session automatically reconnects

I'm hoping some of you could tell me how the following works on your end.   Occasionally, for various reasons, I need to log into my fortigate 1000C and terminate someone's VPN session.  We have two different setups, some using the forticlient via SSL and some using it via IPSEC.  For SSL users I have no problem terminating their session.  I select the session and delete it.  For IPSEC it's different.  I only have the option to "bring down."  If I bring the session down, it ends up coming back up on it's own after 15-30 minutes.

If this is the way it is designed to work then fine.  I opened a ticket with fortinet to confirm.  I've been going back and forth with them for two weeks now, running debugs, testing, testing, testing.   They claim that it is not supposed to work this way, the tunnel should not reestablish on it's own.  At this point I'm sorry I even asked, I'm done running debugs as it's wasting too much time.  But I am still curious what the rest of the world has experienced.

Thanks in advance.