not working getGetPost and getPostGet

Hello Mate.

Currently using CodeIgniter 4.0.3 for a project I created, i do not know if this is a known bug or not.
But Recently i discovered, when using getGetPost or getPostGet, the second fallback doesn't return anything just empty array (array (0) {} with var_dump), but when i tried the getGet or getPost it return just fine.

So i post it here so someone could take a look.

So for workaround i just using the regular getGet or getPost.

Good Day Mate.