Bug #458: Range#dup returns incorrect results
http://redmine.ruby-lang.org/issues/show/458

Author: Anonymous
Status: Open, Priority: Normal
Category: core

p (1..3).dup #=> nil..nil

  ---
  D:\!work\bin\ruby1.9\bin>ruby -v
  ruby 1.9.0 (2008-07-25 revision 18217) [i386-mswin32_71]


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