[Tagging] How to tag un-named roundabout?

[Mike N.]

> Not sure. It's a guess. Changing the highway category to "road" might
> disable the check in KeepRight.

   highway=road is like leaving an implied FIXME=yes tag, according to the 
wiki.  I'd prefer the nonname=yes workaround, if any.   I mentioned 
KeepRight, but it turns out that KeepRight and the Validator plugin now 
allow a roundabout without a name.   The CloudMade 'red highlight' maps do 
call out unnamed roundabouts.