Fix #1020

mods/ITEMS/mcl_bows/arrow.lua

@@ -26,7 +26,7 @@ S("An arrow fired from a bow has a regular damage of 1-9. At full charge, there'
 S("Arrows might get stuck on solid blocks and can be retrieved again. They are also capable of pushing wooden buttons."),
 	_doc_items_usagehelp = S("To use arrows as ammunition for a bow, just put them anywhere in your inventory, they will be used up automatically. To use arrows as ammunition for a dispenser, place them in the dispenser's inventory. To retrieve an arrow that sticks in a block, simply walk close to it."),
 	inventory_image = "mcl_bows_arrow_inv.png",
-	groups = { ammo=1, ammo_bow=1 },
+	groups = { ammo=1, ammo_bow=1, ammo_bow_regular=1 },
 	_on_dispense = function(itemstack, dispenserpos, droppos, dropnode, dropdir)
 		-- Shoot arrow
 		local shootpos = vector.add(dispenserpos, vector.multiply(dropdir, 0.51))

mods/ITEMS/mcl_bows/bow.lua

@@ -100,7 +100,7 @@ local player_shoot_arrow = function(itemstack, player, power, damage, is_critica
 			return false
 		end
 		arrow_itemstring = arrow_stack:get_name()
-		if not has_infinity_enchantment then
+		if not has_infinity_enchantment or minetest.get_item_group(arrow_itemstring, "ammo_bow_regular") == 0 then
 			arrow_stack:take_item()
 		end
 		local inv = player:get_inventory()