Top level applications pages are not excluded properly from Navigation Panel on Home page

STEPS TO REPRODUCE

1. Start a fresh instance
2. Login as Admin
3. Click 'More Applications' > 'Create your own!'
4. Create an application with AWM (e.g. App1)
5. Go to Main.WebHome and observe the Navigation Panel
6. Click on another page
7. Observe the Navigation Panel

EXPECTED RESULTS

The top level page of the application created is not displayed in Navigation Panel as it's excluded by default from it.

ACTUAL RESULTS

When navigating to Main.WebHome, the top level page of the application created is displayed in the Navigation Panel, although it's excluded by default. However, when navigating to another page (or Administer Wiki), the top level app's page is not displayed anymore.

Sometimes the app's top level page behaves in the opposite way: is not displayed in Navigation Panel on Main.WebHome and it's displayed when navigating to other pages.