Fix #57 (thanks Zeno-!).

Uberi · Uberi · commit 70c24c9501c6 · 2014-08-15T19:23:23.000-04:00
diff --git 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
