gistfile1.js

// Tested with 1.0.0-pre.2, 0.9.7 or less does not work.
// Chosen modified to search on @results_data[n].text not .html

App.ChosenMultipleSelect = Em.Select.extend({
    multiple: true,
    attributeBindings: [ 'multiple', 'data-placeholder', 'data-no_results_text'],
    didInsertElement: function() {
        this._super();
        this.$().chosen();
    },

    selectionChanged: function() {
        this.$().trigger('liszt:updated');
    }.observes('selection')
});