Author: Ldp
[Added to the original trac issue at 12.51am, Tuesday, 3rd August 2010]

Tracks aren't thin features. You must be confused with paths? :-)

Have to see about a special style for these cases.

Author: Ldp
[Added to the original trac issue at 9.43pm, Sunday, 22nd August 2010]

r22739 disabled the default gray circle for unhandled highway types, and added a specific style for highway=service.

If a specific turning circle style is needed for other features, like track (example areas?), that would then need to be added explicitly.

Author: NE2
[Added to the original trac issue at 9.44am, Monday, 27th September 2010]

Replying to [comment:1 Ldp]:

Tracks aren't thin features. You must be confused with paths? :-)

Tracks, paths, cycleways, and footways are all the same thickness on Mapnik.

Author: Ldp
[Added to the original trac issue at 10.39pm, Sunday, 13th February 2011]

Since turning circle rendering was removed for 'thin features', the ticket title is no longer valid. :)