From dc8d9b246107888482bdef3a723e3ee98b7860ef Mon Sep 17 00:00:00 2001
From: Martin Edenhofer <me@edenhofer.de>
Date: Wed, 9 Mar 2016 08:17:49 +0100
Subject: [PATCH] Fixed SQL error.

---
 app/models/ticket.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/models/ticket.rb b/app/models/ticket.rb
index 804798824..68448d6b9 100644
--- a/app/models/ticket.rb
+++ b/app/models/ticket.rb
@@ -503,7 +503,7 @@ condition example
         else
           # rubocop:disable Style/IfInsideElse
           if selector['value'].nil?
-            query += "#{attribute} NOT NULL"
+            query += "#{attribute} IS NOT NULL"
           else
             query += "#{attribute} IN (?)"
             bind_params.push selector['value']