A possible linkdeath fix

[irv0]

I can't promise that this fix will be the proverbial silver bullet, particularly for servers with dozens of players (versus my maximum of two), but I am fairly confident that it should at least help a little.

Typically, when the problem that I was having occurred, the debug zone log would fill with messages about duplicate OP_Packet and OP_Fragment with repeating sequence numbers (it still does, but at least now the server is taking some kind of action). The client debug log would indicate that it requested status for X and that it never came.