Description of problem:
Select a task in a workflow.
Select Add Role
A set of checkboxes for available roles will appear.
Select one & click Finish.
The set of checkboxes is still displayed, instead of returning to the Task details
Checking the Task shows that the role is successfully added.
This set of checkboxes remains displayed if you click on another Workflow in the
left hand pane.
This breaks the CMS Smoke test automation
Fixed in perforce change 29977.