Hi,
Forgive the delay. I must not have checked the "email me updates" checkbox.
You are correct. It only affects the first meta-box edited. Others can be edited effectively. The only issue is if the user wants to edit the recently saved fields - they need to refresh the page without the URL param.
Perhaps an update to the plugin would allow developers to specify the redirect similar to the way that they can specify the message. In my case, sometimes, I'd like to redirect to a "success" page that would allow the user to decide where to go next. Other times, a full refresh of the page with a javascript success message would be nice.
We can close this for now. I will not worry about this until the next release of my theme.
Thanks!