Maybe the Single logout not working

[VladTepesIII]

Environment:
Redmine version 2.5.2.stable
Ruby version 2.1.3-p242 (2014-09-19) [x86_64-linux]
Rails version 3.2.19
Environment production
Database adapter Mysql2
Cas SERVER v4.0
redmine_omniauth_cas 0.1.2

The sign in with Jenkins and Redmine is done with CAS

When i logout from jenkins, i am not logged out from redmine

httpd ssl_access_log
172.31.138.91 - - [22/Oct/2014:14:40:04 +0200] "GET /jenkins/logout HTTP/1.1" 302 -
172.31.138.91 - - [22/Oct/2014:14:40:04 +0200] "GET /cas/logout?service=https%3A%2F%2Fcentos-pic1.znet%2Fjenkins%2F HTTP/1.1" 200 1693
172.31.138.91 - - [22/Oct/2014:14:40:05 +0200] "POST /jenkins/securityRealm/finishLogin HTTP/1.1" 200 -
172.31.138.91 - - [22/Oct/2014:14:40:05 +0200] "POST /redmine/auth/cas/callback?origin=https%3A%2F%2Fcentos-pic1.znet%2Fredmine%2F HTTP/1.1" 302 9

httpd ssl_request_log
[22/Oct/2014:14:40:04 +0200] 172.31.138.91 TLSv1.2 DHE-RSA-AES128-SHA "GET /jenkins/logout HTTP/1.1" -
[22/Oct/2014:14:40:04 +0200] 172.31.138.91 TLSv1.2 DHE-RSA-AES128-SHA "GET /cas/logout?service=https%3A%2F%2Fcentos-pic1.znet%2Fjenkins%2F HTTP/1.1" 1693
[22/Oct/2014:14:40:05 +0200] 172.31.138.91 TLSv1.2 AES128-SHA256 "POST /jenkins/securityRealm/finishLogin HTTP/1.1" -
[22/Oct/2014:14:40:05 +0200] 172.31.138.91 TLSv1.2 AES128-SHA256 "POST /redmine/auth/cas/callback?origin=https%3A%2F%2Fcentos-pic1.znet%2Fredmine%2F HTTP/1.1" 9

httpd error_log
App 5439 stdout: (cas) Authentication failure! no_ticket: OmniAuth::Strategies::CAS::MissingCASTicket, No CAS Ticket

This is a bug or i am missing something ?