Trigger automation by blank/no value in fields

Who would benefit?

Product Managers, Product Owners, Program Managers, Project Managers, anyone concerned about governance

What impact would it make?

This would allow workspace Owners to draw other users' attention to built-in, optional fields (e.g. epic field on feature records).

How should it work?

Either of the "changes to" or "value" drop downs gets an "blank" option.