From 3a488908d28d0703650f7bb73b7d0ad0d7b13ab9 Mon Sep 17 00:00:00 2001
From: Michael Malone <malonemike@gmail.com>
Date: Wed, 27 Apr 2016 17:06:16 -0700
Subject: [PATCH] improved pattern null check

modified short circuit on 'pattern' parameter to use a truthy check
rather than explicitly checking against undefined. This will stop the
filter from processing when the pattern is null or empty in addition to
undefined.
---
 src/angular-ui-tree-filter.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/angular-ui-tree-filter.js b/src/angular-ui-tree-filter.js
index 397ae98..0e27ea3 100755
--- a/src/angular-ui-tree-filter.js
+++ b/src/angular-ui-tree-filter.js
@@ -96,7 +96,7 @@
              */
             return function (item, pattern, addresses) {
                 addresses = addresses || uiTreeFilterSettings.addresses;
-                return pattern === undefined || addresses.reduce(function (foundSoFar, fieldName) {
+                return !pattern || addresses.reduce(function (foundSoFar, fieldName) {
                     return foundSoFar || testForField(item, pattern, fieldName);
                 }, false);
             };