ICE-8706 prevented flickering by avoiding sending the list of results from the server when selecting a value from the list with the mouse, since it's not necessary to send/render the list in those cases

git-svn-id: http://anonsvn.icesoft.org/repo/icefaces3/trunk/icefaces@36611 1de00972-ac04-4911-a46b-06793c8d78d9