STEPS TO REPRODUCE:
1. Open clean 6.0.12 bundle and connect mysql database
2. Install kaleo web plugin
3. Enable single approval task for blogs
4. Add new blog entry and submit for approval.
5. Approve the blog and submit another for approval.
6. upgrade to 62x. place following in portal-ext and upgrade
7. Deploy kaleo workflow this will trigger upgrade
8. Got to control panel, and go to my workflowtask.
9. Assign one task to myself and approve the task.
10. Eventhough the task is approved, the blog is not published and stays pending
11. Enable single approval task for blogs (notice single approver is not checked which should have been checked)
12. Add new blog entry and submit for approval.
13. The task never appears