Reproduction

1. Have a versioned page with 3 versions

1. Go to version 1 of the page

1. Select "Move/Rename" in the menu

1. Change the URL to move the book page (in opposition to the versioned sub-page): remove the "v1" in the URL

1. Leave the default options (preserve children, update links) and give a "New title" to give the new path

1. Click the button Rename

Result:

The moving job displays a warning for a page already existing, or doesn't but the v1 page doesn't have content after being moved. (depends on the instance speed)