From 6cfc36d8cc77e739a8d2299247db3147b6d93e6f Mon Sep 17 00:00:00 2001
From: Tim Schaub <tim.schaub@gmail.com>
Date: Tue, 19 Feb 2013 14:17:58 -0700
Subject: [PATCH] Using hasOwnProperty is better for user keys on objects we
 control

---
 src/ol/object.js | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/ol/object.js b/src/ol/object.js
index aff2209925..60e36e2162 100644
--- a/src/ol/object.js
+++ b/src/ol/object.js
@@ -91,7 +91,8 @@ ol.Object.getAccessors = function(obj) {
  * @return {string} Changed name.
  */
 ol.Object.getChangedEventType = function(key) {
-  return ol.Object.changedEventTypeCache_[key] ||
+  return ol.Object.changedEventTypeCache_.hasOwnProperty(key) ?
+      ol.Object.changedEventTypeCache_[key] :
       (ol.Object.changedEventTypeCache_[key] = key.toLowerCase() + '_changed');
 };
 
@@ -101,7 +102,8 @@ ol.Object.getChangedEventType = function(key) {
  * @return {string} Getter name.
  */
 ol.Object.getGetterName = function(key) {
-  return ol.Object.getterNameCache_[key] ||
+  return ol.Object.getterNameCache_.hasOwnProperty(key) ?
+      ol.Object.getterNameCache_[key] :
       (ol.Object.getterNameCache_[key] = 'get' + ol.Object.capitalize(key));
 };
 
@@ -121,7 +123,8 @@ ol.Object.getListeners = function(obj) {
  * @return {string} Setter name.
  */
 ol.Object.getSetterName = function(key) {
-  return ol.Object.setterNameCache_[key] ||
+  return ol.Object.setterNameCache_.hasOwnProperty(key) ?
+      ol.Object.setterNameCache_[key] :
       (ol.Object.setterNameCache_[key] = 'set' + ol.Object.capitalize(key));
 };