See the example in the screenshot.

We have :
Sitemap
|_ intermédiaire
  |_ intermédiaire2

• The sitemap is allowed to anonymous.
• intermédiaire is denied to any connected user (so anonymous too, but just as a consequence).
• There is no assignment storage on intermédiaire2, but the tool displays it as allowed to anonymous (because the parent page has no assignment in anonymous so it looks in the sitemap), whereas it should be denied to any connected user and so to anonymous.

We have to check if it is a bug only in the tool visualisation, or also in the check of rights, which would be a huge security issue.