wrong permission check on sub page duplicate action

[lunika]

Problematic behavior

A user with only read access to a document and it sub documents should not be able to duplicate a sub document in the document tree.
Moreover, it should not become owner of the duplicated sub document

Expected behavior/code

A user with read role should not be allowed to duplicate a sub document.

Steps to Reproduce

20250902-1440-39.9758862.mp4