  def is_a_copy?(folder_obj_cache=nil)

    return false if self.source_id.nil?

    # Exclude those created from system templates.
    begin
      src_item = Item.find(self.source_id)
    rescue => evar
      src_item = nil
    end
    if src_item.nil?
      return true
    else
      return !src_item.in_system_folder?(folder_obj_cache)
    end
  end
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.