[plt-scheme] How do I reload a module that I've "require"d in the REPL?

> If you use DrScheme, of course, you merely click the "run" button again
> and you will always have a completely consistent REPL. Use the module
> language and that REPL will be "inside" the module you are editing.

But this clears all my previous interactions / tests.

I would like to keep those..


Yoav