For any page, if I try choose restrict edit to "myself", and save the page, another user can still edit the page, even if that user is not administrator. When the other user opens the page, the page correctly displays "restrict edit to 'mingyi'", but the user could edit the page anyway. Same problem happens if one tries to restrict to a group.

Restrict VIEW to "myself" or a group works fine because if I set that, no other users can view the page. This bug just hits the edit permissions.