IIRC this is because an artifact grant provides just LimitedView on a private project, and LimitedView isn't sufficient to see series. The attempt to hide series and milestones from artifact viewers was a big flaw in the initial implementation of private projects.
IIRC this is because an artifact grant provides just LimitedView on a private project, and LimitedView isn't sufficient to see series. The attempt to hide series and milestones from artifact viewers was a big flaw in the initial implementation of private projects.