Survey 2.0 Site update functionality in cloned programs

Right now, if you change a survey 2.0 site and clone a program using that survey, the site will not update unless you switch to another survey, save the program details page, switch back and save. The idea here is to always pull the up to date survey site when cloning from a program that used the older site before the update. The same is true for a deleted site as well which could cause a program to use a non existent survey site.