From 70c24c9501c691d85bbe267ee79547fb490e6c00 Mon Sep 17 00:00:00 2001
From: Uberi <azhang9@gmail.com>
Date: Fri, 15 Aug 2014 19:23:23 -0400
Subject: [PATCH] Fix #57 (thanks Zeno-!).

---
 worldedit_commands/init.lua | 1 +
 1 file changed, 1 insertion(+)

diff --git a/worldedit_commands/init.lua b/worldedit_commands/init.lua
index 3613cfa..7d347c9 100644
--- a/worldedit_commands/init.lua
+++ b/worldedit_commands/init.lua
@@ -616,6 +616,7 @@ minetest.register_chatcommand("/stack", {
 		local found, _, axis, repetitions = param:find("^([xyz%?])%s+([+-]?%d+)$")
 		if found == nil then
 			worldedit.player_notify(name, "invalid usage: " .. param)
+			return
 		end
 		local count = check_region(name, param)
 		if count then return (tonumber(repetitions) + 1) * count end