Multiple component instances may have same component name thus causing only one of these to actually be listed by the Components display.
Multiple component instances may exist for Compononent Factory components created with the newInstance method or for regular componnents created due to multiple factory configurations.
Only one is listed, because all components are gathered in a map first to be able to order them by component name before rendering. This causes duplicate components to be removed, though. To still have order-by-name another mechanism for sorting must be implemented.