Broken: 2.8 b24232ff349
Short description of error
Example: in the spring svn, /media/data/spring/scenes/02-forest/02_025_A/02_025_A.lighting.bug.blend
In this file I am encountering a bizarre bug where when I duplicate one of the tree instances, they don't get linked to the view layer and because of that instead land in orphan data.
Just try to duplicate the tree instance in the viewport.