Minor fix

src/common.lua

@@ -408,6 +408,11 @@ local function get_stack(player, stack)
 	end
 end
 
+local function get_group_items(name)
+	local groups = extract_groups(name)
+	return i3.groups[name:sub(7)].items or groups_to_items(groups)
+end
+
 local function craft_stack(player, data, craft_rcp)
 	local inv = player:get_inventory()
 	local rcp_usg = craft_rcp and "recipe" or "usage"
@@ -422,9 +427,7 @@ local function craft_stack(player, data, craft_rcp)
 
 		if is_group(name) then
 			items = {}
-			local groups = extract_groups(name)
+			local item_groups = get_group_items(name)
-			local groupname = name:sub(7)
-			local item_groups = i3.groups[groupname].items or groups_to_items(groups)
 			local remaining = count
 
 			for _, item in ipairs(item_groups) do
@@ -448,9 +451,7 @@ local function craft_stack(player, data, craft_rcp)
 					local old_name, new_name = unpack(pair)
 
 					if is_group(old_name) then
-						local groups = extract_groups(old_name)
+						local item_groups = get_group_items(old_name)
-						local groupname = old_name:sub(7)
-						local item_groups = i3.groups[groupname].items or groups_to_items(groups)
 
 						for _, it in ipairs(item_groups) do
 							if item == it then

src/gui.lua

@@ -1061,12 +1061,17 @@ local function get_grid_fs(fs, data, rcp, is_recipe, is_usage)
 				end
 
 				if not added then
-					label = fmt("%s%s\nR", label ~= "" and "\n" or "", label)
+					label = fmt("%s\nR", label)
 					insert(replace.items, replacement[2])
 				end
 			end
 		end
 
+		local _, count_sub = label:gsub("\n", "")
+		if count_sub == 2 then
+			label = label:sub(2)
+		end
+
 		if not large_recipe then
 			slot(X, Y, btn_size, btn_size)
 		end