WIP: Do not disallow SUPER_USER by login.

Super-user magic must happen by id, not by name.
This may be required by other PAS plugin changes, as now SUPER_USER has
an id but no login.
Also, this requires more work on special users, to see if we can test them
by id and not by login, as well.

product/ERP5Security/ERP5UserFactory.py

@@ -104,7 +104,7 @@ class ERP5User(PropertiedUser):
     As for getRolesInContext, we take into account _getAcquireLocalRoles for
     ERP5.
     """
-    if self.getUserName() == SUPER_USER:
+    if self.getId() == SUPER_USER:
       # super user is allowed to accesss any object
       return 1
 

product/ERP5Security/ERP5UserManager.py

@@ -110,9 +110,6 @@ class ERP5UserManager(BasePlugin):
     return (user_value.getReference(), login_value.getReference())
 
   def _getLoginValueFromLogin(self, login, login_portal_type=None):
-    # Forbidden the usage of the super user.
-    if login == SUPER_USER:
-      return
     user_list = self.enumerateUsers(
       login=login,
       exact_match=True,