bug#7904: 24.0.50; flyspell: wrong highlights for misspelled non-duplicated words

[YAMAMOTO Mitsuharu]

Steps to reproduce:

  1. % emacs -Q
  2. C-h C-c
  3. M-x flyspell-buffer RET

Result:

  Highlights for misspelled non-duplicated words start one character
  early.  For example, the highlight for "Sublicencing" starts from
  its leading space.

aspell --version says: 

  @(#) International Ispell Version 3.1.20 (but really Aspell 0.60.6)

Emacs 23.2.92 correctly highlights such words.  But if I apply the
patch in Bug#7343, I can observe the same problem.

                                     YAMAMOTO Mitsuharu
                                mituharu@math.s.chiba-u.ac.jp

In GNU Emacs 24.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2011-01-24 on mituharu-laptop
Windowing system distributor `The X.Org Foundation', version 11.0.10706000
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: ja_JP.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t