Changing plane on servers

Is it possible to turn the option off on servers where you can jump plane, for example i had a fight against a 109 the other night who was clearly a human pilot (most identifiable by his custom skin) having shot him up real bad I rolled over on him and finished him off, the server announced that I had killed an AI 109, obviously the guy just switched planes when he knew it was all over, can this be diabled server side? I really hope it can be turned off because once online flyers realise that when they are losing a dogfight they can just press esacpe and create a new plane without getting a death against them then it kind of defeats the idea of having dogfight servers. People are already flying through the tree's to avoid being shot down, if its a simple server setting then great it can be turned off if not it surely has to go down as a bug!