ipa_range_check: Make a new copy of forest_root_id attribute for range_info struct
    
    Not making a new copy of this attribute creates multiple frees caused by multiple
    pointers to the same forest_root_id from all the range_info structs for all the
    domains belonging to given forest.
    
    Part of: https://fedorahosted.org/freeipa/ticket/4137
    
    Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>