nil indent-tabs-mode in *Help* removes links

["Drew Adams" <drew.adams@oracle.com>]

emacs -Q
C-h b

Commands bound to keys are linked to help on them.

M-: (setq-default indent-tabs-mode nil)

C-h b

The listed commands are no longer linked. Clicking them with mouse-2
does nothing (error "No cross reference here").


In GNU Emacs 22.1.1 (i386-mingw-nt5.1.2600)
 of 2007-06-02 on RELEASE
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --cflags -Ic:/gnuwin32/include'

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: ENU
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Dired by name

Minor modes in effect:
  encoded-kbd-mode: t
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t

Recent input:
<help-echo> <help-echo> <down-mouse-1> <mouse-1> C-h
b C-x 1 M-: ( s e t e q - <backspace> <backspace> <backspace>
q - d e f a u l t SPC i n d e n t - t a b s - m o d
e SPC n i l ) <return> C-h b C-x 1 <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <menu-bar>
<help-menu> <report-emacs-bug>

Recent messages:
("C:\\Emacs-22.1\\bin\\emacs.exe" "-q" "--no-site-file" "--debug-init"
"C:\\drews-lisp-20")
Loading encoded-kb...done
For information about the GNU Project and its goals, type C-h C-p.
Loading dired...
Loading regexp-opt...done
Loading dired...done
For information about the GNU Project and its goals, type C-h C-p.
Loading help-mode...done
nil
Loading emacsbug...done