[racket-dev] Is this legal submodule code?

I'm trying to wrap my head around submodules so I can get it working
with Whalesong, but I'm running into an issue:

#lang racket

(define (print-cake n)
  #;(show "   ~a   " n #\.)
  #;(show " .-~a-. " n #\|)
  #;(show " | ~a | " n #\space)
  (show "---~a---" n #\-))

(define (show fmt n ch)
  (printf fmt (make-string n ch))
  (newline))

(module* main2 #f
  (print-cake 20)

  (module* inner-main #f
      (print-cake 20)))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

I'm trying to understand what it means for the "name" of a module to
be a list, and I expect the name of the inner-main module to be (cake
main2 inner-main).  Is that right?


But I see the following error message when trying to run this under DrRacket:


##########################################################
Welcome to DrRacket, version 5.2.901.1--2012-04-18(7279b02/g) [3m].
Language: racket.
. . local/racket/collects/errortrace/errortrace-lib.rkt:434:2:
standard-module-name-resolver: too many ".."s in submodule path:
(submod (quote cake) "..")
##########################################################



I don't know enough about submodules yet to know if this is a bug or
I'm just doing something wrong.