This was never correctly implemented. It now works as expected (ala 2.79 behaviour). The proxy object is added to all the collections of the original empty. Before not only this wasn't the case, but it would crash Blender.
This was never correctly implemented. It now works as expected (ala 2.79 behaviour). The proxy object is added to all the collections of the original empty. Before not only this wasn't the case, but it would crash Blender.