I just enabled form key validation and there's an error showing up on logout:
My Magento version is 1.9.1.0 with last patch 9767 applied
Invalid method Mage_Core_Model_Session::renewFormKey(Array
(
)
)
Trace:
#0 /var/www/html/jmcfloral/app/code/core/Mage/Customer/Model/Session.php(311): Varien_Object->__call('renewFormKey', Array)
#1 /var/www/html/jmcfloral/app/code/core/Mage/Customer/Model/Session.php(311): Mage_Core_Model_Session->renewFormKey()
#2 /var/www/html/jmcfloral/app/code/core/Mage/Customer/Model/Session.php(255): Mage_Customer_Model_Session->_logout()
#3 /var/www/html/jmcfloral/app/code/core/Mage/Customer/controllers/AccountController.php(235): Mage_Customer_Model_Session->logout()
#4 /var/www/html/jmcfloral/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Customer_AccountController->logoutAction()
#5 /var/www/html/jmcfloral/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('logout')
#6 /var/www/html/jmcfloral/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#7 /var/www/html/jmcfloral/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#8 /var/www/html/jmcfloral/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#9 /var/www/html/jmcfloral/index.php(87): Mage::run('', 'store')
#10 {main}