Steps to Reproduce

run the attached example in a tomcat with session serialization enabled (default)
1. select one or more items
2. shutdown tomcat
3. restart tomcat
4. select another item in the chosenbox

Actual Result

all selected items are lost at server side

Expected Result

selection should continue working after session de/serialization

Debug Info

the server side creates new uuids for the option elements after deserialization while the client side still only knows the old uuids (which are sent down to the server in the next onSelect event, failing to match them at server side)