Details
Description
Similar fatal DB errors to bug CRM-5220 are incurred when registering for events or deleting participants (and likely other actions involving participants) if Participant Statuses are modified.
Occurred on Joomla 1.6.6 / CiviCRM 4.0.5 and latest SVN updates.
Unsure of the exact cause however was immediately fixed by resetting all Participant Status types to default values (labels, weights, visabilitys etc) in the database.