Access to page with fe_group restriction - redirect to unresitricted parent not working in V11


After upgrading a typo3 installation to V11 it seems some default handling regarding the frontend authentication of the requested page did break. The expected behaviour for requesting access-restricted pages is, that the response will contain the first page found in the rootline which is not restricted. The actual behaviour is a 403 error page.

What is the correct migration to achieve the desired behaviour for typo3 v11?

kind regards,

→ see Bug #100938: Display of parent page not working if group access denies specific page - TYPO3 Core - TYPO3 Forge