Ensure currentUser still exists before setting properties
Ensure currentUser still exists before setting properties

This is necessary because tests create and destroy this object very
quickly.

jrjohnson/frontend,ilios/frontend,gboushey/frontend,dartajax/frontend,gboushey/frontend,jrjohnson/frontend,ilios/frontend,thecoolestguy/frontend,gabycampagna/frontend,dartajax/frontend,djvoa12/frontend,gabycampagna/frontend,stopfstedt/frontend,stopfstedt/frontend,thecoolestguy/frontend,djvoa12/frontend