[racket] Modules and File Save Bug?

From: Sean Kanaley (skanaley at gmail.com)
Date: Sat Jun 22 15:02:45 EDT 2013

I don't use modules very much, so this could be the defined behavior 
similar to how the ffi module "secretly" (it's actually documented) 
doesn't reload foreign libraries unless DrRacket is restarted, but I 
didn't notice anything in the documentation.  How to reproduce:

(module+ test
   (write "?"))

Without even running it, save the file, then delete that expression.  
Now run it (as in ctrl+r), and it will write "?".

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