DataObject setFrom with array values

Hello, I'm using quickform and dataobject together. In the form I have a date element that submits its value as an array. In my dataobject I have a custom setDate method. When I use setFrom($form->exportValues()), it doesn't call my setDate method or set the var at all. It doesn't actually call the custom set methods for any of the elements that are arrays. I think its because of this code in the setFrom method in DataObject.php: if (is_array($from[sprintf($format,$k)])) { continue; } Is this supposed to work like this? If so why? Otherwise is there something I'm missing? Thanks, Julie