[#1448 UnicodeDecodeError with encoded url]

With latest Zwiki, this msnbot url: 

  http://zwiki.org/InternationalCharacterExamples%3Fsubject=Greek%2520-%2520%25CE%2595%25CE%25BB%25CE%25BB%25CE%25B7%25CE%25BD%25CE%25B9%25CE%25BA%25CE%25AC&in_r%5Ceply_to=%253C20070212224444-0800%2540zwiki.org%253E

gives::

 Traceback (innermost last):
  Module ZPublisher.Publish, line 127, in publish
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 47, in call_object
  Module Products.ZWiki.ZWikiPage, line 239, in __call__
  Module Products.ZWiki.ZWikiPage, line 251, in render
  Module Products.ZWiki.plugins.pagetypes.rst, line 54, in render
  Module Products.ZWiki.Views, line 435, in addSkinTo
  Module Shared.DC.Scripts.Bindings, line 324, in __call__
  Module Shared.DC.Scripts.Bindings, line 361, in _bindAndExec
  Module Products.PageTemplates.PageTemplateFile, line 130, in _exec
  Module Products.PageTemplates.PageTemplate, line 80, in pt_render
  Module zope.pagetemplate.pagetemplate, line 115, in pt_render
  Module zope.tal.talinterpreter, line 271, in __call__
  Module zope.tal.talinterpreter, line 343, in interpret
  Module zope.tal.talinterpreter, line 888, in do_useMacro
  Module zope.tal.talinterpreter, line 343, in interpret
  Module zope.tal.talinterpreter, line 533, in do_optTag_tal
  Module zope.tal.talinterpreter, line 518, in do_optTag
  Module zope.tal.talinterpreter, line 513, in no_tag
  Module zope.tal.talinterpreter, line 343, in interpret
  Module zope.tal.talinterpreter, line 946, in do_defineSlot
  Module zope.tal.talinterpreter, line 343, in interpret
  Module zope.tal.talinterpreter, line 888, in do_useMacro
  Module zope.tal.talinterpreter, line 343, in interpret
  Module zope.tal.talinterpreter, line 888, in do_useMacro
  Module zope.tal.talinterpreter, line 343, in interpret
  Module zope.tal.talinterpreter, line 852, in do_condition
  Module zope.tal.talinterpreter, line 343, in interpret
  Module zope.tal.talinterpreter, line 376, in do_startEndTag
  Module zope.tal.talinterpreter, line 405, in do_startTag
  Module zope.tal.talinterpreter, line 482, in attrAction_tal
  Module Products.PageTemplates.Expressions, line 203, in evaluateText
  Module Products.PageTemplates.Expressions, line 224, in _handleText
 UnicodeDecodeError: 'ascii' codec can't decode byte 0xce in position 8: ordinal not in range(128)

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forwarded from http://zwiki.org/1448UnicodeDecodeErrorWithEncodedUrl#[email protected]