At which URL did you encounter the problem?

http://finto.fi/yso/fi/page/p1084 (ajoneuvovero)

What steps will reproduce the problem?

1. Click "vastuu" in the side hierarchy pane
2. Press the back button in the browser

What is the expected output? What do you see instead?

Expected: The concept details for "ajoneuvovero"
Instead: Still seeing the concept details for "vastuu"

What browser did you use? (eg. Firefox, Chrome, Safari, Internet explorer)

Firefox