\useURL not working with '#' and '_' in URL in newest beta

[Drazen Baic <dpeterx@googlemail.com>]

Hello,

URLs with '#' or '_' in the URL worked fine with LuaTeX, Version
snapshot-0.37.0-2009033116  and ConTeXt 2009.04.06 21:42
and still work with the newest beta LuaTeX, Version
snapshot-0.39.0-2009041623 and ConTeXt 2009.04.21 16:11 when
compiled with '--xtx'. When compiled with '--lua' I got this error:

! Illegal parameter number in definition of \dodogetargument.
<to be read again>
                   s
<argument> ...ce.contextgarden.net/core-pos.tex##s
                                                  etpositions
\dodogetargument ...{\douseurl [{setposition}][{#1
                                                  }][{##1}]}\dogetargument [...
l.13 ...textgarden.net/core-pos.tex#setpositions}]


here is a minimal example. It doesn't work no matter if
\setupinteraction is active or not

\setupcolors
  [state=start]
\setupinteraction
  [state=start,color=blue]
\useURL
  [minimals]
  [{http://wiki.contextgarden.net/ConTeXt_Minimals}]
  []
  [\ConTeXt\ Minimals]

\useURL
  [setposition]
  [{http://source.contextgarden.net/core-pos.tex#setpositions}]
  []
  [\tex{setposition}]

\useURL
  [setuppositioning]
  [http://texshow.contextgarden.net]
  [{cmd/en/setuppositioning}]
  [\tex{setuppositioning}]

\starttext
Lookup the source code of \from[setposition]! Or read about the syntax
of \from[setuppositioning].
More Information about \CONTEXT\ Minimals at: \from[minimals]
\stoptext

Regards,
Drazen
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