Field participant_role is not set to default participant_role_id

In earlier versions of CiviCRM it was possible to have the CiviCRM included using a Custom Profile for events and it would be set automatically to the participant_role_id by default.

This is gone in 3.4.5 and does not work on the demo system either. To reproduce add Participant Role to a Profile and add the profile to the event. The role should be selected by default if you give a default participant_role in the event settings (which you are forced to do currently).

A fix for this bug is to add the following

+ $this->_defaults['participant_role'] = $this->_defaults['participant_role_id'];

in the setDefaultValues function.