Details
Description
I have a patch for this but am not working on it at this stage (I'm working on a postProcess hook not being called problem)
https://github.com/eileenmcnaughton/civicrm-core/tree/CRM-14309
Also includes
Strict warning: Non-static method CRM_Event_Form_Registration_Confirm::updateContactFields() should not be called statically, assuming $this from incompatible context in CRM_Event_Form_Registration_Register->processRegistration() (line 1239 of /var/www/drupal/sites/default/modules/civicrm/civicrm-core/CRM/Event/Form/Registration/Register.php).