Effect Maker view is not reset after deleting the effect that is currently open in the view

Steps to reproduce:

• Create new effect in Effect Maker view and save it
• Right-click the effect in Assets view and choose "Delete File"
• -> Effect Maker View still shows the deleted effect (name and effect nodes)
• -> Assign button is enabled, and will open "Effec xx is not complete..Do you want to edit this effect?" -dialog when pressed. Clicking yes will make the effect nodes disappear.
• Would expect that Effect Maker View is reset after deleting the currently open effect, showing "Untitled" for the effect name and no effect nodes