If you change superuser role (with superuser user), maybe for adding or changing other workspace permissions, you want be able to access other roles (try to export them).

To reproduce:

1. Login to magnolia (demo) with superuser/superuser
2. Edit superuser role
3. Change something (e.g.: add change "/" to "/test" on "Templates" workspace)
4. save
5. reopen superuser role

Now superuser role has permission "Selected" and not "Selected and subnodes". It can not be reverted (only with a JCR Browser on userroles ws..)

relates to MAGNOLIA-6005