OpenACS

Submitting the “/” site‑map permissions form without any changes inadvertently

omitted direct (read‑only) permissions, causing not-logged-in users to see

“The page isn’t redirecting properly” when accessing the root node.

This change ensures that existing direct permissions are preserved when

the form is submitted, even if no changes were made.

Thanks to Khy H for reporting this!

Backport from main branch

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