Bug: $request->getVar('test', FILTER_VALIDATE_INT) does not work if the input is an array

[crustamet]

I have this test here in my URL request

?relation%5Bid_roadmap%5D=test&relation%5Bid_roadmap_year%5D=NULL

$request->getVar('relation', FILTER_VALIDATE_INT);

does not do anything to the array
but if i make it for each it works

$request->getVar('relation[id_roadmap]', FILTER_VALIDATE_INT);
it validate correctly

I hope you fix even if the input request is an array pls.

[crustamet]

Maybe is the wanted result to not apply the filter on all the array ? please tell me so i can change my code..