When a field is required, Drupal removes the default "-None-" value. However, also for a required field, "-None-" is very valuable as it requires the user to make a deliberate selection (put the first value on the select list as default doesn't force a sloppy user to make a selection).
I need to:
- Have "-None-" as default value in the select list of a required field
- Not accept "-None-" as field value when the form is submitted
How can I achieve this with