remove a lot from items stored on unit

lua/items.lua

@@ -926,16 +926,13 @@ loti.item.describe_item = function(number, sort, set_items)
 				elseif effect.set == "lawful" then line = "<span color='yellow'>" .. _"Sets alignment to lawful" .. "</span>"
 				elseif effect.set == "neutral" then line = "<span color='yellow'>" .. _"Sets alignment to neutral" .. "</span>" end
 			elseif effect.apply_to == "status" then
-				for part in string.gmatch(effect.add, '([^,]+)') do
-					if line then table.insert(desc, line) end
-					if part == "unpoisonable" then line = "<span color='yellow'>" .. _"Immune to Poison" .. "</span>"
-					elseif part == "unslowable" then line = "<span color='yellow'>" .. _"Immune to Slow" .. "</span>"
-					elseif part == "undrainable" then line = "<span color='yellow'>" .. _"Immune to Drain" .. "</span>"
-					elseif part == "unplaguable" then line = "<span color='yellow'>" .. _"Immune to Plague" .. "</span>"
-					elseif part == "unpretrifiable" then line = "<span color='yellow'>" .. _"Immune to Petrify" .. "</span>"
-					elseif part == "unhealable" then line = "<span color='yellow'>" .. _"Unhealable" .. "</span>"
-					elseif part == "invulnerable" then line = "<span color='yellow'>" .. _"Invulnerable" .. "</span>" end
-				end
+				if effect.add == "unpoisonable" then line = "<span color='yellow'>" .. _"Immune to Poison" .. "</span>"
+				elseif effect.add == "unslowable" then line = "<span color='yellow'>" .. _"Immune to Slow" .. "</span>"
+				elseif effect.add == "undrainable" then line = "<span color='yellow'>" .. _"Immune to Drain" .. "</span>"
+				elseif effect.add == "unplaguable" then line = "<span color='yellow'>" .. _"Immune to Plague" .. "</span>"
+				elseif effect.add == "unpretrifiable" then line = "<span color='yellow'>" .. _"Immune to Petrify" .. "</span>"
+				elseif effect.add == "unhealable" then line = "<span color='yellow'>" .. _"Unhealable" .. "</span>"
+				elseif effect.add == "invulnerable" then line = "<span color='yellow'>" .. _"Invulnerable" .. "</span>" end
 			elseif effect.apply_to == "bonus_attack" then
 				line = "<span color='green'>" .. _"Bonus attack: " .. effect.description .. "</span>"
 			elseif effect.apply_to == "status" and effect.add == "not_living" then

lua/unitdata.lua

@@ -312,7 +312,9 @@ local wml_based_implementation = {
 	add_item = function(unit, item_number, item_sort)
 		unit = normalize_unit_param(unit)
 
-		local item = wesnoth.deepcopy(loti.item.type[item_number])
+		local item = {}
+		item.number = item_number
+		item.name = loti.item.type[item_number].name
 		if item_sort then
 			item.sort = item_sort
 		end