From 9bfbce776bbbec15f55c55dd171671d19d9b1e3d Mon Sep 17 00:00:00 2001
From: John Glover <j@johnglover.net>
Date: Mon, 10 Dec 2012 16:57:44 +0100
Subject: [PATCH] [#264] Fix for #264 from ckan-updates branch.

Uses _.defaults rather than performing an explicit
deep copy.
---
 src/model.js | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/src/model.js b/src/model.js
index f5354210..e912d8e5 100644
--- a/src/model.js
+++ b/src/model.js
@@ -499,11 +499,7 @@ my.Query = Backbone.Model.extend({
     var ourfilter = JSON.parse(JSON.stringify(filter));
     // not fully specified so use template and over-write
     if (_.keys(filter).length <= 3) {
-      ourfilter = _.extend(
-        // crude deep copy
-        JSON.parse(JSON.stringify(this._filterTemplates[filter.type])),
-        ourfilter
-      );
+      ourfilter = _.defaults(ourfilter, this._filterTemplates[filter.type]);
     }
     var filters = this.get('filters');
     filters.push(ourfilter);