From 93b78722d892256c7e88b0788b8cb784407f3906 Mon Sep 17 00:00:00 2001
From: chromakode <c@chromakode.com>
Date: Wed, 6 Apr 2011 04:11:34 -0700
Subject: [PATCH] Fall back properly in Action.addToArgs if no args argument is
 passed in. Thanks to slyf for finding this issue.

---
 modules/utils/action/action.jsm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/utils/action/action.jsm b/modules/utils/action/action.jsm
index 4937c89..7b00da1 100644
--- a/modules/utils/action/action.jsm
+++ b/modules/utils/action/action.jsm
@@ -64,7 +64,7 @@ ActionType.prototype = {
   
   addToArgs: function(args) {
     // Arguments contain the arguments passed to this function, with this action object at the end.
-    var newargs = Array.prototype.splice.call(args, 0) || [];
+    var newargs = args ? Array.prototype.splice.call(args, 0) : [];
     if ((newargs.length == 0) || (newargs[newargs.length-1] != this)) {
       newargs.push(this);
     }