highway=mini_roundabout is not rendered as roundabout

[patman37]

issue

A small roundabout with the tag highway=mini_roundabout appears as a roundabout in the standard OpenStreetMap view
e.g : https://www.openstreetmap.org/#map=19/47.78967/-0.44469

however, in cyclosm it appears as a normal junction

proposal

also in cyclosm a mini-roundabout should be shown as a roundabout and not as a normal junction.