The list is completely display as checklist (See image ScreenCA3), drop-down list and radio buttons. but is not in the other displays (In object creation, search or list management screen (Images ScreenCa and ScreenCA2)). Only the 50~100 first items are available but the data is correctly stored (available in look-up in 1.6.3 or in the list item search).
Debian 8, Mysql, php 5.6.26
Firefox and IE