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 <email@example.com>