bug#17671: 24.3.91; RET on a link in *Help* buffer resizes *Help*

[Eli Zaretskii <eliz@gnu.org>]

In "emacs -Q":

  C-h f line-move-visual RET
  C-x o
  move to the link under "simple.el" and type RET
  drag the mode line so that the lower window showing *Help* becomes
   smaller
  move cursor to the first call to vertical-motion
  C-h f RET
  C-x o
  move to the link under "C source code" and type RET
  the window showing *Help* is resized back to half the frame

This is annoying.  I like my *Help* windows to be small, but many
times (but not always) they are resized when I need to request
documentation of something else.

Why cannot Emacs keep the size of that window?



In GNU Emacs 24.3.91.32 (i686-pc-mingw32)
 of 2014-06-02 on HOME-C4E4A596F7
Repository revision: 117194 rgm@gnu.org-20140602011408-hg26p0rgaafsr1n4
Windowing system distributor `Microsoft Corp.', version 5.1.2600
Configured using:
 `configure --prefix=/d/usr --enable-checking=yes,glyphs 'CFLAGS=-O0
 -gdwarf-2 -g3''

Important settings:
  value of $LANG: ENU
  locale-coding-system: cp1255

Major mode: C/l

Minor modes in effect:
  tooltip-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  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
  abbrev-mode: t

Recent input:
C-h f l i n e - m o v e - v i s u <tab> <return> C-x 
o <down> <left> <left> <left> <left> <return> <help-echo> 
<help-echo> <down-mouse-1> <help-echo> <drag-mouse-1> 
<help-echo> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <C-right> C-h f <return> C-x o <down> <left> 
<left> <left> <left> <left> <left> <left> <return> 
M-x r e p o r t - e m <tab> <return>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Type C-x 1 to delete the help window.


Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message cl-macs format-spec
rfc822 mml mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils cc-langs cl gv cl-loaddefs cl-lib cc-mode
cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars
cc-defs vc-bzr find-func help-mode easymenu help-fns time-date tooltip
electric uniquify ediff-hook vc-hooks lisp-float-type mwheel dos-w32
ls-lisp w32-common-fns disp-table w32-win w32-vars tool-bar dnd fontset
image regexp-opt fringe tabulated-list newcomment lisp-mode prog-mode
register page menu-bar rfn-eshadow timer select scroll-bar mouse
jit-lock font-lock syntax facemenu font-core frame cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev
minibuffer nadvice loaddefs button faces cus-face macroexp files
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote make-network-process
w32notify w32 multi-tty emacs)

Memory information:
((conses 8 112220 8108)
 (symbols 32 20442 0)
 (miscs 32 45 181)
 (strings 16 19751 3811)
 (string-bytes 1 616149)
 (vectors 8 12617)
 (vector-slots 4 407577 5294)
 (floats 8 62 499)
 (intervals 28 587 124)
 (buffers 508 16))