Hi Mark,
following on from above, if someone subsequently changes their mind a second time and changes their RSVP status back to Will Attend, no email notification is sent. However, if they have changed their mind a second time and change their RSVP status to Will Attend and get placed on a waitlist, no notification email is sent to say they are on the waitlist but a notification is sent if a place becomes available and they are added to the event.
It leaves people a bit confused as to whether they have actually given up their place or if they have a place on an event at times.
Regards
Andy