fix LDAP group look up
fix LDAP group look up

Issue: 5436
(transferred from ManageIQ/manageiq@fefa12cb1fc0523169a36da850f5c7d3e585e15b)

ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic