Crisu83/yii-workflow — pull request #3 by gutschik (2014-05-12 11:40:15+00:00)
Title: Update beforevalidate to enable status updates to 0

validating the status with php's empty method makes it impossible to update the status of a record to 0.
usecase: $statuses = array(-1, 0, 1); // -1 = deleted, 0 = archived, 1 = active/Default
result: "manual" change from active to archived is not possible