http://zkfiddle.org/sample/p79fr8/16-Multipage-Listbox-selection-bug

if you select one item on page 1, counter goes up, but if you change page an select another item (holding CTRL) only one item (the one in the first page) is selected.

Actualy, in the zkfiddle test it works because it uses ZK 6.5.3, but in my application (6.5.4) it doesn't.
Thanks