Workers pile up Artefacts, library and research shrine

Noticed this a few times now.

If I have more Artefacts than library shelves my Imps simply queue around the shelf carrying Artefacts until I've used enough Artefacts for them to then place a new Artefact on the shelf.

Also my Imps attempt to place an artefact on a research shrine which I'm guessing from precious game versions is not an intended action