From 9983c0be433517abe8c222ffda52578539a921fd Mon Sep 17 00:00:00 2001
From: Ansis Brammanis <ansis.brammanis@gmail.com>
Date: Thu, 18 Apr 2013 13:58:22 -0400
Subject: [PATCH] make difference calculation stricter

Changed entities with the exact same properties no longer get counted as
modified.

issue #1287
---
 js/id/core/difference.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/id/core/difference.js b/js/id/core/difference.js
index 3587fb20b..a55beb934 100644
--- a/js/id/core/difference.js
+++ b/js/id/core/difference.js
@@ -11,7 +11,7 @@ iD.Difference = function(base, head) {
 
     _.each(head.entities, function(h, id) {
         var b = base.entities[id];
-        if (h !== b) {
+        if (!_.isEqual(h, b)) {
             changes[id] = {base: b, head: h};
             length++;
         }
@@ -19,7 +19,7 @@ iD.Difference = function(base, head) {
 
     _.each(base.entities, function(b, id) {
         var h = head.entities[id];
-        if (!changes[id] && h !== b) {
+        if (!changes[id] && !_.isEqual(h, b)) {
             changes[id] = {base: b, head: h};
             length++;
         }