Reproduction link

https://github.com/ng-alain/ng-alain/issues/new/choose

Steps to reproduce

this.menuService.add(res.menu);
let item = this.menuService.getItem('settings');
item.hide= true;
this.menuService.setItem('settings', item);

What is expected?

that 'setting' will be hidden

What is actually happening?

'settings' shows in the menu