I just destroyed a Sarissa outside Manhattan, was destroyed myself a few seconds later. When I undock to leave the system, I see the same Sarissa engaging, and he and an LNS ship both tell me that I need to leave, but he can reengage because I was the only one engaging him and I died.
Is that really allowed? I never logged off and that's the only relevant line I can see in the rules, but they said it was a technicality.