AutoComplete: resizing when changing source shows blank item

[joshtynjala]

Forum thread: http://forum.starling-framework.org/topic/autocomplete-and-item-not-visible

Create AutoComplete:

this.input = new AutoComplete();
this.input.autoCompleteDelay = 0;
updateSource();
this.addChild(this.input);

var button:Button = new Button();
button.label = "Click Me";
button.y = 50;
button.addEventListener(Event.TRIGGERED, function():void
{
    saveNewItem();
});
this.addChild(button);

Functions:

public function saveNewItem():void
{
    myArray.push(this.input.text);
    updateSource();
}

private function updateSource():void
{
    var source:LocalAutoCompleteSource = new LocalAutoCompleteSource( new ListCollection( myArray ) );
    this.input.source = source;
}

steps to reproduce :

• tap on keyboard "go" -> "Click Me"
• tap on keyboard "goo" -> "Click Me"
• tap on keyboard "goog" -> "Click Me"
• keyboard "backspace"
• keyboard "backspace"