I have two fields in my form:
(a) Direct Manager Name (people picker), e.g. John Smith
(b) Department Head Name (people picker) e.g. John Smith
I also have a check box "If you Direct Manager and Department Head are the same person, check this box". What I want is to copy the Direct Manager name to the Department Head Name field (as this is a mandatory field so I can't leave it blank or rely on the workflow to update this).