Unable to move a restricted page under another page within space. Reproducible by the following steps:

1. Create a user and a group, assign the user to the group
2. Create a space
3. Assign all permissions for the created space to the newly created user except Space Admin
4. Create two pages within that space with the newly created user
5. Set Edit and View restrictions on one of the pages for the newly created group
6. Go to Browse > Pages > View: Tree and try moving the page with restictions set under the other page
7. Operation will fail with the message "You can not restrict pages in the destination space. Remove restrictions before moving page."

According to documentation it should not require any other permissions.