From 1a03348d84677c1d30cd59d9195284dbcab00b12 Mon Sep 17 00:00:00 2001
From: John Lindal <github@newplanetsoftware.com>
Date: Fri, 18 Jul 2014 15:31:19 -0700
Subject: [PATCH] normalize sortBy so it is always an array

---
 src/datatable/js/sort.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/datatable/js/sort.js b/src/datatable/js/sort.js
index b73438d1aad..61ec316f2ae 100644
--- a/src/datatable/js/sort.js
+++ b/src/datatable/js/sort.js
@@ -580,6 +580,9 @@ Y.mix(Sortable.prototype, {
                 }
 
                 if (i >= len) {
+                    if (!isArray(sortBy)) {
+                        sortBy = [sortBy];
+                    }
                     sortBy.push(column._id);
                 }
             } else {