Inherit, rewrite: different binaries?

[zimoun]

Dear,

Let consider this trivial package definitions:

--8<---------------cut here---------------start------------->8---
(define-module (foo)
  #:use-module (guix packages)
  #:use-module (gnu packages base))

(define-public hello-bis
  (package
    (inherit hello)
    (name "hello-bis")))

(define-public hello-ter
  ((package-input-rewriting '()
                            (lambda (name)
                              "hello-ter")
                            #:deep? #f)
   hello))
--8<---------------cut here---------------end--------------->8---

Somehow, the 3 packages ’hello’, ’hello-bis’ and ’hello-ter’ are the
same.

Using Guix 04a459a069155a6b676b6b93d7dbddb426dd0679, the binaries do not
seem the same:

--8<---------------cut here---------------start------------->8---
$ for h in hello hello-bis hello-ter; do md5sum $(guix build -L . 
$h)/bin/hello; done
4183f77722b91fb156403838f299cc7f  
/gnu/store/a462kby1q51ndvxdv3b6p0rsixxrgx1h-hello-2.10/bin/hello
4c6b9c3b6eca974c1433ec489a7abe92  
/gnu/store/zpmd9s4yggrksr2rki8xkxvzp44q8zmk-hello-bis-2.10/bin/hello
0c34626a575622351678d8554b7b5310  
/gnu/store/dg0lxrxc5wz3k3ljc82n5pn3y9ffg8s4-hello-ter-2.10/bin/hello
--8<---------------cut here---------------end--------------->8---


What do I miss?


All the best,
simon