(1) install app that implements topology overlay
(2) confirm that overlay is present in topo toolbar
(3) on applications view, uninstall the application
(4) back on Topology View, check topo toolbar
- expected behavior: topo overlay from app is no longer present
- actual behavior: overlay still there
- when user uninstalls app, pop up a dialog requesting that the user re-load the UI with a browser refresh button.