better tolerate missing enacted/updated fields
diff --git a/planetstack/core/xoslib/templates/xosAdmin.html b/planetstack/core/xoslib/templates/xosAdmin.html
index 700fd19..4862cea 100644
--- a/planetstack/core/xoslib/templates/xosAdmin.html
+++ b/planetstack/core/xoslib/templates/xosAdmin.html
@@ -84,7 +84,7 @@
 </script>
 
 <script type="text/template" id="xos-backend-status-icon-template">
-    <% if (model.enacted === undefined) { %>
+    <% if (! ("enacted" in arguments) ) { %>
         <!-- enacted is undefined; this must be a new object -->
     <% } else if ((enacted) && (enacted >= updated)) { %>
         <span style="min-width:16px;"><img src="/static/admin/img/icon_success.gif"></span>