We already have dedicated outliner visibility operators that not only take precedent over those ones, but also unhide collections as well. No change for the end user. That said, since I added the outliner hide/unhide operators I assumed that newly visible objects are to be selected. That can change in a separate commit, but it should be done by changing OUTLINER_OT_unhide_all. Reviewers: brecht Differential Revision: https://developer.blender.org/D4527