How do you get a child dependency field to have a -None- value? I have a couple of dependency fields on my custom module, however, when dependant options are set and the first dropdown changes, the first option of the dependant field becomes the first option in the list instead of -None-, meaning the user can just click save without being forced to choose an option. You can't create your own -None- as thats not allowed, and there isn't a -None- value to select when setting dependant lists to force one to display. So how do you do it?