SelectItem with specialValues / sortField / filter - bug

[brevai]

Hello,

I am trying to use specialValues with sortField set in a SelectItem with the filter editor showing. When entering something in the filter, the specialValues don't stay on top of the list but are sorted as well.

SmartClient version: v10.1p_2016-05-14/PowerEdition Deployment
Browser: Chrome 50.0.2661.102 m

Test case:

var dsFolder = DataSource.create({ fields: [{name: 'id'},{name: 'name'}], cacheData:[
    {id: 1, name: "Folder 1"},
    {id: 2, name: "Folder 2"},
    {id: 3, name: "Folder 3"}
], clientOnly:true});

isc.DynamicForm.create({
    width: 500,
    numCols:4,
    fields : [{
        name: "filteredSelect", title: "Choose an item (Select)", editorType: "SelectItem",
        optionDataSource: dsFolder,
        displayField:"name", valueField:"id",
        pickListWidth:300,
        pickListProperties: {
            showFilterEditor:true
        },
        pickListFields:[
            {name:"name"}
        ],
        specialValues: { "**emptyValue**": "None", "-1": "Not Applicable" },
        sortField:'name'
    }]
}).show();

To reproduce: type 'f' into the filter editor and 'None' and 'Not Applicable' move to the end of the list.

Thanks.