TinyMCE adds a placeholder <br> if no data is inserted.  In this case, remove it.

def clean(self):
        ''' TinyMCE adds a placeholder <br> if no data is inserted.  In this case, remove it. '''
        cleaned_data = super(ManagerForm, self).clean()
        compensation = cleaned_data.get("compensation")
        duties = cleaned_data.get("duties")
        if compensation == '<br data-mce-bogus="1">':
            cleaned_data["compensation"] = ""
        if duties == '<br data-mce-bogus="1">':
            cleaned_data["duties"] = ""
        return cleaned_data