Good Morning,

This is the app i used to make that particular edit: 

Street­Complete (OpenStreetMap surveyor app)
https://f-droid.org/packages/de.westnordost.streetcomplete/

Unfortunately, something has to have gone horribly wrong... I have no idea why or how that roundabout came to appear, but it definitely dosent belong there. Whats clear is that its my edit so I cant blame the app for not double checking.
Im sorry for the inconvenience.

Thank you for commenting.