Index: trunk/src/org/openstreetmap/josm/tools/Utils.java
===================================================================
--- trunk/src/org/openstreetmap/josm/tools/Utils.java	(revision 6122)
+++ trunk/src/org/openstreetmap/josm/tools/Utils.java	(revision 6123)
@@ -574,4 +574,5 @@
         HttpURLConnection connection = (HttpURLConnection) httpURL.openConnection();
         connection.setRequestProperty("User-Agent", Version.getInstance().getFullAgentString());
+        connection.setUseCaches(false);
         return connection;
     }