From 2da5759c69966f21314def08bbcb8d6d632b933b Mon Sep 17 00:00:00 2001
From: Martin Edenhofer <me@edenhofer.de>
Date: Fri, 1 Apr 2016 00:21:57 +0200
Subject: [PATCH] Just update nav if param is given.

---
 .../app/controllers/_application_controller_generic.coffee     | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/assets/javascripts/app/controllers/_application_controller_generic.coffee b/app/assets/javascripts/app/controllers/_application_controller_generic.coffee
index e48dbcb69..8e9fa7f80 100644
--- a/app/assets/javascripts/app/controllers/_application_controller_generic.coffee
+++ b/app/assets/javascripts/app/controllers/_application_controller_generic.coffee
@@ -105,7 +105,8 @@ class App.ControllerGenericIndex extends App.Controller
     @title @pageData.title, true
 
     # set nav bar
-    @navupdate @pageData.navupdate
+    if @pageData.navupdate
+      @navupdate @pageData.navupdate
 
     # bind render after a change is done
     if !@disableRender