"more pages" if there are no more pages

On the left side in the Navigation, there is a page called "Animals". This page is visible by anyone. The page Animals has 32 sub-pages which are only visible for the Group "Bees":

• Animals

• • Zoo1
  • Zoo2
  • Zoo3
  • ZooN

If a user, who is NOT in the Group "Bees" enters the wiki, he sees the main page "Animals". (OK)

If this user clicks on "Animals", he sees a  button "20 more" which should indicate that there are more sub-pages to be listed. (NOK)

If the user clicks on "20 more" the entry changes to "9 more". (NOK)

If the user clicks on "9 more" the entry disappears (NOK)

I would expect that if the user has the right to see "Animals", the entry need to be shown. If there are no more available, readable, visible pages (regarding the access rights) there should be NO "20 more" / "9 more" button which would indicate that there are more sub-pages to be listed.