The Rename button isn't displayed in the Space Index for non Admin users

Steps to reproduce:

1. Login with Admin
2. Create a new user (U1)
3. Grant that user the right to Delete a certain page (for ex. Sandbox.WebHome)
4. Login with U1
5. Go to http://localhost:8080/xwiki/bin/view/Main/SpaceIndex?space=Sandbox -> see spaceIndex.png

The only Actions displayed are "copy" and "delete", even if you have the right to rename the page. If you hover over Page the Rename link is visible -> see pageMenu.png
The only way I managed to make the button appear is by giving U1 the Admin right.

I've also noticed the "rights" button isn't displayed for non Admin users, but that might be another issue.