Setting a picklist default for custom field on the webform, default not working...

Setting a picklist default for custom field on the webform, default not working...

So, I created a custom field in the module for a pick list, and told it which choice I wanted to show up as the default under the choice "Select default value".  

I then went to create a web form, and used this custom pick list as one of the fields in the web form.  

However, when I look at the preview for the web form it does not use the default choice I specified, instead it shows the value "-None-" instead of the default value I specified when I created the custom field.

Any suggestions?