'C-x v a' broken for svn backend

[Leo]

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the address@hidden mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

To reproduce:
    1) emacs -Q
    2) open a file that is under SVN version control with changes
    3) C-x v a

An empty *ChangeLog* buffer is open.

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/local/packages/emacs/share/emacs/22.0.93/etc/DEBUG for instructions.


In GNU Emacs 22.0.93.6 (i686-pc-linux-gnu, GTK+ Version 2.10.8)
 of 2007-02-08 on sl392.st-edmunds.cam.ac.uk
X server distributor `The X.Org Foundation', version 11.0.70101000
configured using `configure  '--prefix=/usr/local/packages/emacs' '--with-gtk' 
'--with-kerberos5' '--enable-locallisppath=/usr/local/share/emacs/site-lisp' 
'--without-toolkit-scroll-bars' 'CFLAGS=-O2 -march=pentium-m -pipe 
-fomit-frame-pointer''

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: en_US.UTF-8
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: Emacs-Lisp

Minor modes in effect:
  erc-page-mode: t
  erc-menu-mode: t
  erc-services-mode: t
  erc-autojoin-mode: t
  erc-button-mode: t
  erc-ring-mode: t
  erc-pcomplete-mode: t
  erc-track-mode: t
  erc-match-mode: t
  erc-fill-mode: t
  erc-stamp-mode: t
  erc-netsplit-mode: t
  erc-smiley-mode: t
  erc-scrolltobottom-mode: t
  senator-minor-mode: t
  semantic-idle-summary-mode: t
  semantic-idle-scheduler-mode: t
  paredit-mode: t
  dired-omit-mode: t
  recentf-mode: t
  icomplete-mode: t
  show-paren-mode: t
  delete-selection-mode: t
  global-auto-revert-mode: t
  display-time-mode: t
  shell-dirtrack-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
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<help-echo> n q C-x C-f . d / i n <return> C-x v a 
C-x k <return> C-x 0 <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<down-mouse-5> <mouse-5> <double-down-mouse-5> <double-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<down-mouse-4> <mouse-4> <double-down-mouse-4> <double-mouse-4> 
<triple-down-mouse-4> <triple-mouse-4> <down-mouse-5> 
<mouse-5> <double-down-mouse-5> <double-mouse-5> <down-mouse-1> 
<mouse-1> <down-mouse-4> <mouse-4> <double-down-mouse-4> 
<double-mouse-4> <triple-down-mouse-4> <triple-mouse-4> 
<down-mouse-5> <mouse-5> <double-down-mouse-5> <double-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <down-mouse-1> <mouse-1> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <menu-bar> <help-menu> <report-emacs-b
ug>

Recent messages:
Generating summary...done
Mark set
Loading add-log...done
(New file)
Mark set
Computing change log entries... done
byte-code: End of buffer [4 times]
Loading semantic-decorate-mode...done
Auto-saving...
Loading emacsbug...done