Yandex Maps API memory leak

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Memory leak test</title>
<script src="http://api-maps.yandex.ru/2.1/?lang=ru_RU"></script>
</head>
<body>

<input type="button" value="recalc" id="recalcBtn" />
<div id="mapContainer" style="width: 400px; height: 400px;"></div>

<script>
var map;

ymaps.ready(function() {
    map = new ymaps.Map("mapContainer", {
        center: [55.76, 37.64],
        zoom: 10
    });
});

(function() {

    var OBJECTS = 1000;

    document.getElementById("recalcBtn").onclick = function() {
        map.geoObjects.removeAll();
        for (var i = 0; i < OBJECTS; ++i) {
            map.geoObjects.add(new ymaps.Placemark([55.76 + i * 0.001, 37.64 + i * 0.001]));
        }
    }

})();
</script>

</body>
</html>