ToME: the Tales of Maj'Eyal

I think this shows up when the confusion effect procs:

[LOG] TestA hits forest troll for #aaaaaa#12.00 physical damage#LAST#.
Lua Error: /data/damage_types.lua:825: attempt to index local 'dam' (a number value)
At [C]:-1
At /data/damage_types.lua:825 projector
At /mod/class/interface/Combat.lua:245 attackTargetWith
At /mod/class/interface/Combat.lua:99
At (tail call):-1
At /mod/class/Actor.lua:1207 attack
At /engine/interface/ActorLife.lua:40
At (tail call):-1
At [string "return function(self, x, y, what, ...) loca..."]:1
At (tail call):-1
At /engine/Actor.lua:119 move
At /mod/class/Actor.lua:363 move
At /mod/class/Player.lua:140
At (tail call):-1
At /mod/class/Game.lua:722 ?
At /engine/KeyBind.lua:198

fixed