Dumping policy on a table belonging to an extension is expected?

I have a ROW LEVEL SECURITY policy on the table part of an extension, and while
dumping the database where that extension is installed, dumps the policy of
that table too even though not dumpling that table .
   
Here is quick tests, where I have added following SQL to adminpack--1.0.sql
extension file:  

CREATE TABLE public.foo (i int CHECK(i > 0));
ALTER TABLE public.foo ENABLE ROW LEVEL SECURITY;
CREATE POLICY foo_policy ON public.foo USING (true);

After installation and creation of this extension, the dump output will have
policy without that table:

--
-- Name: foo; Type: ROW SECURITY; Schema: public; Owner: amul
--

ALTER TABLE public.foo ENABLE ROW LEVEL SECURITY;

--
-- Name: foo foo_policy; Type: POLICY; Schema: public; Owner: amul
--

CREATE POLICY foo_policy ON public.foo USING (true);


I am not sure if that is expected behaviour. The code comment in
checkExtensionMembership() seems to be doing intentionally:

     * In 9.6 and above, mark the member object to have any non-initial ACL,
     * policies, and security labels dumped.

--
Regards,
Amul Sul
EDB: http://www.enterprisedb.com