Guest user is a able to rename Groupfolders

[delacosta456]

Hi
While testing this module i gave noticed that a guest user

• without being part of any other group than Guest
• without administrative permission
• (implicitly)without being groupfolders member I haven't test with normal folder to see if it's behaves this same way.
  Thanks

[small1]

this should not even be possible. Since the guest user shouldnt even see the groupfolder if they are not part of the group assigned to it.