PLAY-115 Fix search by role for users with several roles
Created by: LudmilaNepomn
previously when sort by role we get repeated users for each role (because of join), it have been fixed by streaming result list and getting only distinct values
Created by: LudmilaNepomn
previously when sort by role we get repeated users for each role (because of join), it have been fixed by streaming result list and getting only distinct values