修正商品连续点击显示错误的问题

@@ -213,7 +213,7 @@ exports.init = function() {
                             html += Mustache.render(tpl, goods[i]);
                             html += Mustache.render(tpl, goods[i]);
                         }
                         }
                     }
                     }
-                    if (nav.reload) {
+                    if (nav.reload || len === 0) {
                         $container.html(html);
                         $container.html(html);
                     } else {
                     } else {
                         $container.append(html);
                         $container.append(html);