From 8925c6f5180d73e777749d20093dfa75c7464d0e Mon Sep 17 00:00:00 2001
From: olivergrahl <og@grahl-software.com>
Date: Wed, 18 Jan 2017 09:45:20 +0100
Subject: [PATCH] Fix #639 and #638 (Error 500 opening a ticket view) (#640)

* Fix #639 and #638 (Error 500 opening a ticket view)

* Only initialize preferences if not already filled.
---
 app/models/taskbar.rb | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/app/models/taskbar.rb b/app/models/taskbar.rb
index 3a0310742..e84519293 100644
--- a/app/models/taskbar.rb
+++ b/app/models/taskbar.rb
@@ -55,6 +55,9 @@ class Taskbar < ApplicationModel
     return true if local_update
 
     # find other same open tasks
+    if !preferences
+      preferences = {}
+    end
     preferences[:tasks] = []
     Taskbar.where(key: key).order(:created_at).each { |taskbar|
       if taskbar.id == id