How to reset a lesson? E.g. (New) Responsive Web Design, Lesson 2

Lesson 2 asks that a h2 line be added below the provided h1 line of code.
I accidentally erased the h1 line, but can find no way to reset the code to the original state. The webapp remembers my last changes so I’m stuck.

Can a reset lesson button be added to these lessons?

Unexpectedly, revisiting a previous lesson for which I’ve submitted passing code does reset the lesson! I would ecxpect that completed lessons keep track of the correct solution for later reference.

Welcome there,

After running the tests a few times, a “Reset” button appears.

Hope this helps