TYPO3 Core

When a BE user is given just "Show Page" permissions, it allows said user to see the page and its content in the tree. It should, however, also allow this user to make a copy of such a pace to a place in the tree where they themselves do have write permissions. Copying leaves the original completely untouched, so it fits with the permissions model. It even says "Show/Copy" in the Access BE module so I suspect the fact that copying is not allowed to be a bug.