Currently we have a different behavior depending on whether a OpenPGP certificate which is imported matches the criteria for bringing up the "You have imported a new certificate" window or not. (Apparently. Might be the cause is a bit different if you look at the code…)
The "Certificate Import Result" window is not shown at all if the "You have imported a new certificate" comes up on import.
It should be shown before the "You have imported a new certificate" window.