should destroying set the refcount to 0?

[Maciej Stachowiak <mjs eazel com>]

Should bonobo_object_destroy set the refcount to 0? Right now, if you
destroy the object, it does some cleanup (including
gtk_signal_disconnects and gtk_object_destroys), but does not set the
refcount to 0. If the refcount ever does hit zero, that cleanup tries
to happen again, but fails.

 - Maciej