Bug in RedCloth or in my head?

Using version 3.0.3

r = RedCloth.new "-- hyphens to the left of me --"

=> "-- hyphens to the left of me --"

r.to_html

=> "<p>&#8212;hyphens to the left of me&#8212;</p>"

3.0.4 is buggy in other places iirc (haven't used it since _I_ was tripped
up) - and afaik it's on the backburner at the moment - stick with 3.0.3,
works fine.