Dojo Form Filteringselect Allow User Entered Data

I want to create a form with FilteringSelect element and would be great if use could enter custom value. I tried to do that with comboBox but without success (it sends always value

Solution 1:

I made small work around ;)

dijit.byId('nameOfTheWidget').item.value;

assigned in onChange event to hidden input.
Tricky but works as I wanted.
It means I made it with ComboBox