Fixed summon control ending while the player is dead

git-svn-id: http://svn.net-core.org/repos/t-engine4@2735 51575b47-30f0-44d4-a5cc-537603b46e54

game/modules/tome/class/interface/PartyDeath.lua

@@ -47,6 +47,7 @@ function _M:onPartyDeath(src)
 		game.party:setPlayer(game.party:findMember{main=true}, true)
 		game.paused = true
 		game.player.energy.value = game.energy_to_act
+		src = src or {name="unknown"}
 		game.player.killedBy = src
 		game.player.died_times[#game.player.died_times+1] = {name=src.name, level=game.player.level, turn=game.turn}
 		game.player:registerDeath(game.player.killedBy)