[jQuery] $.ajax behaviour change in 1.2 ?

[kelye]

hello.
i've noticed a modification in $.ajax() function.

$.ajax({
        type: "POST",
        url: 'mypage.php?smth=2',
        data: "action=action",
        dataType: 'json',
        success: function(){
        }
})

previous to 1.2 this function was sending "action" using POST to
'mypage.php?smth=2'
in 1.2 it is sending "action" and "smth" to "mypage.php" .
do you know of any way to make it work as before?

thank you