Gmail Threaded emails Clicking Cancel doesn't work as I'd expect it to

Ok, here's the scenario as I see it. 

You are reading through a email mailing list where two people are communicating. 
One of them has a key sign attached to their emails. 
Lets say there are 6 emails in the thread.  Meaning 3 of the 6 emails will have a sign attached.
Gmail displays the entire 6 email thread in one browser session.
The FIRST email with a sign, FireGPG 'asks' If I want to import the key.
If I click "Cancel" Implying 'No, I do not want to import the key', it then continues reading each email, then encounters the next sign by the same person and asks me again. 

I would think that caching the response for the session so that any second or more reads find the 'same key' in the same browser session would acknowledge that I 'Cancel'led the original request and probably haven't changed my mind .2 seconds later.

Also after this operation completes it displays an erroneous message "Key Not Found".  I would expect it to say "Key Not Imported by Request" or some such to indicate that I 'purposefully' deny'd it, rather than implying it couldn't find it or possible server connection issues.

Thanks for your attention.