Some computed fields have been added in v9 and are calling the method
_compute_day. This method accesses the project related to the issue
So a user portal is able to see his own issue, but cannot open the
form view as the prefetching is loading the fields. Hiding them in
the group base.group_user doesn't have any effect as the compute method
is called on the read. These information may have their importance to
the customer too.
We decided to compute these fields on superuser access rights.
Also the field project_id is displayed on the project_issue form view.
As this information is internal, we're hiding this also under the employee
group.
Yannick Tivisse
271840a282