PL/Perl Returned Array

Hackers,

Given this script on 9.1beta3:

BEGIN;

CREATE EXTENSION plperl;

CREATE OR REPLACE FUNCTION wtf(
) RETURNS TEXT[] LANGUAGE plperl AS $$ return []; $$;

SELECT wtf() = '{}'::TEXT[];

ROLLBACK;

The output is:

BEGIN
CREATE EXTENSION
CREATE FUNCTION
?column?
----------
f
(1 row)

ROLLBACK

Why is that? If I save the values to TEXT[] columns, they are still not the same. But if I pg_dump them and then load them up again, they *are* the same. The dump looks like this:

CREATE TABLE gtf (
have text[],
want text[]
);

COPY gtf (have, want) FROM stdin;
{} {}
\.

Is PL/Perl doing something funky under the hood to array values it returns on 9.1?

Thanks,

David