Help with CVS related include pattern

[David Eisner]

I'm trying to use rsync to make a local copy of only
a subset of a directory tree: all directories, and all
files within "CVS/" directories, but nothing else.

I thought this might work:

  rsync -av --include '*/' --include 'CVS/*' --exclude '*' src src_cvs

It does recursively copy all directories (including CVS directories),
but it doesn't copy the files within the CVS directories.

What am I missing?  I'm using rsync 2.5.5, and I see the behavior
on both Solaris and Cygwin.

Thanks!

-David