From 5ed5968b767357ab31a8b8bb6604dc04ede3286c Mon Sep 17 00:00:00 2001
From: Ansis Brammanis <ansis.brammanis@gmail.com>
Date: Thu, 18 Apr 2013 16:29:03 -0400
Subject: [PATCH] fix reverting tag values

broke with dc0a6576
---
 js/id/ui/preset.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/js/id/ui/preset.js b/js/id/ui/preset.js
index 01ff7501f..d52a820e8 100644
--- a/js/id/ui/preset.js
+++ b/js/id/ui/preset.js
@@ -76,7 +76,7 @@ iD.ui.preset = function(context, entity, preset) {
         d3.event.preventDefault();
         var t = {};
         field.keys.forEach(function(key) {
-            t[key] = original ? original.tags[key] : undefined;
+            t[key] = original ? original.tags[key] || '' : '';
         });
         event.change(t);
     }