[R-pkg-devel] --as-cran URL check

I am having some trouble with a NOTE produced by an R-devel check of URL
references. The reference was

 \url{http://som.eldoc.ub.rug.nl/reports/themeF/2005/05F10/}

which the --as-cran check finds has moved and notifies about the redirected
address


http://www.rug.nl/research/portal/publications/pub(d7d4ea3d-af1d-487a-b9b6-c0816994ef5a).html

My browser finds this, and does not distinguish it from


http://www.rug.nl/research/portal/publications/pub%28d7d4ea3d-af1d-487a-b9b6-c0816994ef5a%29.html

However, I cannot get either of these forms of the new address to work in
the man page and/or CITATION file  \url{}. The first gives

Found the following (possibly) invalid URLs:
  URL:
http://www.rug.nl/research/portal/publications/pub(d7d4ea3d-af1d-487a-b9b6-c0816994ef5a).html
    From: man/estFAmodel.Rd
          man/estTSFmodel.Rd
          man/tsfa-package.Rd
          inst/CITATION
    Status: 500
    Message: Internal Server Error

even though I can cut and paste that address from the error message into my
browser and it works fine. The second form results in a problem parsing the
Rd file, the end of the section is not recognized and for the next section I
get "unexpected section header '\examples'". I think the percent signs cause
the end of the line with the closing } to be treated as a comment, but if I
put the } on a new line the status 500 occurs. With the percent signs
escaped in the second form I get the status 500 error message as in the
first form.

Is this a bug in the R-devel --as-cran URL check, or does anyone see
something I am missing?

Thanks,
Paul Gilbert