jQuery.param regression with empty arrays

[roborg@…]

For the following code:

var obj = {'foo[]':[]};
var str = jQuery.param(obj);

In jQuery 1.4.2, str === "" but in jQuery 1.5.2 str === "foo%5B%5D=".

The end result is that in 1.5.2, PHP receives an array with a single element, which is an empty string - this is incorrect.

[anonymous]

Sorry - duplicate of #6481

[addyosmani]

Duplicate of #6481.