Steps:
- Schedule some activities to `admin` (users with hr officer)
- Remove hr rights to `admin`
- Log-in with `admin` and click on notification
- Click on `Summary`
- Traceback
If we click on `Summary` a `_search` is executed in `hr.employee`
When a user does not have the required rights we will apply `_search` on
the fields on `hr.employee.public` instead of `hr.employee.private`.
Except that in the case of `activity_ids` this field does not exist in
`hr.employee.public`
opw-2765032
closesodoo/odoo#95802
X-original-commit: c4a5c63b6141424e31d7a7c8bc6d0c00d58643c0
Signed-off-by: Kevin Baptiste <kba@odoo.com>