From 2ceee23cfe645cbd3442362cb2aaa718fae79b9b Mon Sep 17 00:00:00 2001
From: Philipp Tessenow <philipp.tessenow@student.hpi.uni-potsdam.de>
Date: Mon, 20 Jun 2011 16:03:58 +0200
Subject: [PATCH] do not try to resolve dependents when there is no dependent

---
 assets/javascripts/reporting/filters.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/assets/javascripts/reporting/filters.js b/assets/javascripts/reporting/filters.js
index 235e681f0b..77d2ed0877 100644
--- a/assets/javascripts/reporting/filters.js
+++ b/assets/javascripts/reporting/filters.js
@@ -280,6 +280,9 @@ Reporting.Filters = {
     all_dependents = Reporting.Filters.get_dependents(selectBox);
     next_dependents = Reporting.Filters.get_dependents(selectBox, false);
     dependent = Reporting.Filters.which_dependent_shall_i_take(source, next_dependents);
+    if (!dependent) {
+      return;
+    }
     active_filters = Reporting.Filters.visible_filters();
 
     if (!active_filters.include(dependent)) {