From a84d60f36d67742dd3e5e0eeb1e3b7c138f43b29 Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Tue, 5 Mar 2013 15:58:52 -0800
Subject: [PATCH] Clear cache when changing source

---
 js/id/renderer/background.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/js/id/renderer/background.js b/js/id/renderer/background.js
index cc0fee26d..9d1fccfd3 100644
--- a/js/id/renderer/background.js
+++ b/js/id/renderer/background.js
@@ -165,6 +165,7 @@ iD.Background = function() {
     background.source = function(_) {
         if (!arguments.length) return source;
         source = _;
+        cache = {};
         setPermalink(source);
         return background;
     };