It depends now if the paths are just one-way paths or indeed a roundabout.

I can give perfect example why it depends: https://www.openstreetmap.org/node/10841359118

The Keskväljaku street around this memorial are indeed marked as a roundabout because the traffic signs are there telling that its a round about. Passed there numerous times.
 
From that example, these paths may also be a roundabout depending on the traffic signs there.