[AC-766] Alloy: Usage of Picker events in ListView crashes app

<Alloy>
	<Window id="win" title="Picker in ListView">
		<ListView id="listView" onItemclick="handleListViewClick">
			<Templates>
				<ItemTemplate name="DateTimePicker">
					<Picker class="picker" onChange="setPickerValue" />
				</ItemTemplate>
			</Templates>
		</ListView>
	</Window>
</Alloy>

var section = Ti.UI.createListSection({
	items : [{
		template : "DateTimePicker",
		properties : {
			height : 200
		}
	}]
});

$.listView.setSections([section]);
$.win.open();

function setPickerValue(e) {
	Ti.API.warn(e);
}

".picker": {
	type: Titanium.UI.PICKER_TYPE_DATE_AND_TIME,
	height: 200
}