Кол-во товаров в корзине обновляется только кнопко

<div id="[[+key]]" class="row">
    <div class="col-sm-3 hidden-xs cart-img">
	    <a rel="fancybox" href="[[+image]]" target="_blank" title="[[+longtitle]]">
	        <img class="img-responsive" src="[[+thumb]]" alt="[[+pagetitle]]" />
	    </a>
    </div>
    <div class="col-sm-9 col-xs-12">
        <div class="mb20">
            [[pdoField:is=`1`:then=`
                    <a href="[[~[[+id]]]]"><b>[[+longtitle]]</b></a>
                `:else=`
                    <b>[[+longtitle]]</b>
                `? 
                &id=`[[+parent]]` 
                &field=`published`
            ]]
        </div>
        <div class="row">
            <div class="col-sm-3 col-xs-3">
        		<form method="post" class="ms2_form input-group">
        			<input type="hidden" name="key" value="[[+key]]">
        			<input type="number" name="count" value="[[+count]]" max-legth="4" class="form-control" />
        			<span class="input-group-btn">
            			<button class="btn btn-success" type="submit" name="ms2_action" value="cart/change"><span class="glyphicon glyphicon-refresh"></span></button>
        			</span>
        		</form>
            </div>
            <div class="col-sm-5 col-xs-5">
                <span>[[+price]]</span> [[%ms2_frontend_currency]][[+old_price]]
            </div>
            <div class="col-sm-4 col-xs-4">
        		<form method="post" class="ms2_form">
        			<input type="hidden" name="key" value="[[+key]]">
                    <button class="btn btn-warning pull-right" type="submit" name="ms2_action" value="cart/remove" title="[[%ms2_cart_remove]]">
                        <!--<span class="glyphicon glyphicon-remove"></span>-->
                        Удалить
    			    </button>
        		</form>
            </div>
        </div>
    </div>
</div>
<!--minishop2_option.color [[%ms2_frontend_color]]: [[+option.color]];-->
<!--minishop2_option.size [[%ms2_frontend_size]]: [[+option.size]];-->
<!--minishop2_old_price 
<span class="old_price">[[+old_price]] [[%ms2_frontend_currency]]</span>-->