[ikarus-users] something strange in list-sort?

[Ramana Kumar]

Can you help me think of situations in which replacing (lambda ()
(null? '())) by (lambda () #t) produces different behavior in a
program? lambda, quote, and null? are from (rnrs) and the change is
occurring in the procedure passed to list-sort. I would rather not
post my complete program just yet because it's quite long, and I want
to pinpoint the exact issue... but let me know if there are pertinent
details I can supply.