Sorry for such a simple question, but I don't see any way to NOT save a file update in Paw.
When troubleshooting, I often open up a paw file to retrieve a request that was working earlier. I usually try the request a few different ways before figuring out the problem.
Then when I'm ready to leave Paw, I want to close Paw WITHOUT saving the file.
But by that time, Paw has already silently saved the file and my original (working!) request has been overwritten with my troubleshooting junk.
So how can I go in and muck about with a request without saving it? Hopefully I'm just missing something really simple.