Bug in PL/PgSQL "SELECT .. INTO" statement parser

Here is an example:

CREATE TABLE test2 (
id BIGINT,
chunk_id BIGINT
);
CREATE TABLE test1 (
id BIGINT
);

CREATE OR REPLACE FUNCTION "bug" () RETURNS pg_catalog.void AS
$body$
DECLARE
row_test1 test1%rowtype;
row_test2 test2%rowtype;
BEGIN
SELECT test1, chunk_ad
FROM test1 JOIN test2 ON(chunk.id = test2.chunk_id)
LIMIT 1
INTO row_test1, row_test2;

END;
$body$
LANGUAGE 'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY DEFINER;

Will throw error:
ERROR: LIMIT #,# syntax is not supported
HINT: Use separate LIMIT and OFFSET clauses.
QUERY: SELECT test1, chunk_ad FROM test1 JOIN test2 ON(chunk.id =
test2.chunk_id) LIMIT 1, 0, $1
CONTEXT: SQL statement in PL/PgSQL function "bug" near line 8

********** Ошибка **********

ERROR: LIMIT #,# syntax is not supported
SQL state: 42601
Подсказка:Use separate LIMIT and OFFSET clauses.
Контекст:SQL statement in PL/PgSQL function "bug" near line 8