When I’m seeing an archetype without signing in, and later I sign in, the archetype view (the one I’m seeing) is not updated with the “edition” buttons (discussion, review, …).
When I open the archetype again, the buttons are there (I’m still logged in).
With the next release, already opened archetype, template, termset, release set tabs (as well as the forthcoming project and incubator tabs), will be refreshed automatically on login, so that the rest of the buttons will appear automatically (and additional content etc. as well). Thank you for the suggestion!