serious form submission bug: !CURRENT_URL!

["clemens fischer" <ino-qc@xxxxxxxxxxxxxxxxxxxxxx>]

please go to:

  Title:          vmailmgr@lists.em.ca: Search Form
  URL:            http://lists.em.ca/?command=searchform&list=vmailmgr

place some search term into the search box and hit the submit
button.  emacs-w3m will flunk out, the URL it submits is:

http://lists.em.ca/!CURRENT_URL!?submit=Search+vmailmgr&terms=frontmail&list=vmailmgr&command=search

which fails miserably.  i checked with w3m and elinks:  both don't
have this problem.  how does this string `!CURRENT_URL!' come into
the submitted item?  i have seen this on several occasions and always
thought this to be a problem with the forms, but it's clearly an
emacs-w3m problem.

  clemens