.serialize() and and initial empty string on input

[anonymous]

When a hidden input (perhaps others but only tested with hidden) starts with an empty string value and then changed to some other valid value in js, .serialize() on the form does not recognize the new value in a subsequent event. However, when the hidden input starts with a non-empty string value, the new value is recognized.

[Rick Waldron]

This is simply not true.

​http://jsfiddle.net/rwaldron/DkuZB/