KRACOEUS-8306: Addressing issue of switching sponsor code from NIH and c...

...ertain roles.
The problem that was happening is that once the sponsor code changed, an NPE would be thrown while attempting to load this page because one of the PKs for getting the role changed.  Now, once the page loaded, it defaults to another role and a new role code will be set (saving through navigating or actually clicking save).  It's just a way for getting the page to the point where it can load everything and reset itself to a new set of roles based on the new sponsor.  the setting the description to "UNKNOWN" is not really necessary, but I left it from an earlier iteration of the error message.