We've a music festival admin that works like a hub for different cities.
For example, .com/usa/en/admin/ should present the admin for USA festival edition. And .com/madrid/es/admin should present the admin for Spain edition.
The pattern is .com/city/locale/admin.
The resources (models and pages) should be scoped by the city.
We need to reload menu so items hrefs could be updated.
So, when admin user switch from /usa to /madrid, all menu links will be updated to point to new /madrid.
