I setup an ezapprove workflow. When I valdate every thing work. But if I reject content th workflow cronjob scipt crash:

PHP Fatal error: Call to a member function remove() on a non-object in /var/www/site/cronjobs/workflow.php on line 51

$bodyMemento->remove(); --> because the object $bodyMementon is null.

I find this issue, I use the same hack as workarround.
#011705: workflow/processlist may crash if memento data is broken

Steps to reproduce

• create a workflow ezapprove.
• reject the content.
• run the cronjob frequent (php runcronjobs.php frequent)

It fails with error:

PHP Fatal error: Call to a member function remove() on a non-object in /var/www/site/cronjobs/workflow.php on line 51