Do not update roles in the CSE edition

If the role is not in shown on the page than
`get_security_userattrs` cannot find any set roles in the POST request
and stores 0 roles, removing any rights from the user. The POST request
is send when you change the set the password of an automation user and
save.

In the CSE we deactivated the option to change automation user roles by
choice. A common error of users is to misconfigure the default
automation users. That would lead to broken sites.

Change-Id: I2ee6b8fba701b2346d4ba07951087acf353e809e

cmk/gui/wato/pages/users.py

@@ -899,9 +899,10 @@ def _get_security_userattrs(self, user_attrs: UserSpec) -> None:
             user_attrs["serial"] = user_attrs.get("serial", 0) + 1
 
         # Roles
-        user_attrs["roles"] = [
-            role for role in self._roles.keys() if html.get_checkbox("role_" + role)
-        ]
+        if edition() != Edition.CSE:
+            user_attrs["roles"] = [
+                role for role in self._roles.keys() if html.get_checkbox("role_" + role)
+            ]
 
     def page(self) -> None:  # pylint: disable=too-many-branches
         # Let exceptions from loading notification scripts happen now