I see the same results on Racket 7.0 and 6.5, so I don't think anything has changed.
Maybe the trouble is that (make-inspector) makes a subinspector of (current-inspector), which has the same value for both the main module & the submodules. Switching to (make-sibling-inspector) causes (struct? an-s) to return #f -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-users/CAFUu9R4%2BZ-CzmGCx7rZhcqanJXNpTJsyXEB52_bHRT_FC%3DqTqA%40mail.gmail.com.