该问题是怎么引起的？

我想让下拉树 tree 实现分页，但是 tree 好像不支持分页，希望能支持一下，谢谢！

重现步骤

var demo2 = xmSelect.render({
el: '#demo2',
autoRow: true,
tree: {
show: true,
showFolderIcon: true,
showLine: true,
indent: 20,
expandedKeys: [ -1 ],
lazy: true,
load: function(item, cb){
setTimeout(function(){
if(item.name.endsWith('2')){
return cb([]);
}
cb([
{name: item.name + 1, value: item.value + '1', children: [] },
{name: item.name + 2, value: item.value + '2', children: [] },
])
}, 500)
}
},
height: '240px',
paging: true,
pageRemote: true,
pageSize: 2,
data(){
return [
{name: '销售员', value: -1, children: []},
{name: '奖品', value: -2, children: []},
{name: '奖品1', value: -3, children: []},
{name: '奖品2', value: -4, children: []},
{name: '奖品3', value: -5, children: []},
{name: '奖品4', value: -6, children: []},
]
}
});

报错信息