- Create "site1"
- Go to Build > Pages and add "page1"
- Go to Publishing > Export and export site1, make sure Navigation Menus are included
- Create "site2"
- Go to Build > Pages and add "page2"
- Go to Publishing > Import and import the LAR created in step 3., make sure Navigation Menus are imported
Expected result: Import succeeds, page2 and page1 are both displayed on the default navigation menu
Actual result: Import fails with DuplicateSiteNavigationMenuException
The name of a site navigation menu should be unique within a group, and it's being validated upon addition even for the Default menu. It should be decided how the application should behave in this case.