Bug report: undo delete doesn't undo it. Just hides the bar
When deleting a task, a bar appears at the top asking if you'd like to undo the delete. Clicking the undo link doesn't undo the delete, but rather just hides the bar.
This is happening to me in Chrome on Windows 7 professional.
Also, it might be better to actually prompt the user to delete a task item rather than passively ask them if they want to undelete the task.