bug#2859: 23.0.91; indent-tabs-mode and cua-rectangle editing when using the tab key

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 [email protected] mailing list.

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

(setq-default indent-tabs-mode nil)
I have set indent-tabs-mode to nil
This setting does not work during indenting with cua rectangle mode
The recent input below shows a test case:
Just go to the beginning of a line, hit C-RET
And hit tab to indent a line

I expect the line to be indented with blanks, but tabs are used here.



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
/opt/rhel4/stow/emacs/share/emacs/23.0.91/etc/DEBUG for instructions.


In GNU Emacs 23.0.91.1 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2009-03-19 on pchagsrei
Windowing system distributor `The X.Org Foundation', version 11.0.60802000
configured using `configure  '--prefix=/opt/rhel4/stow/emacs' '--without-rsvg''

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
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  whitespace-mode: t
  desktop-save-mode: t
  icomplete-mode: t
  eldoc-mode: t
  shell-dirtrack-mode: t
  global-cwarn-mode: t
  diff-auto-refine-mode: t
  global-auto-revert-mode: t
  recentf-mode: t
  cua-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  hs-minor-mode: t

Recent input:
<down> <down> <home> C-k C-k l i n e 1 <return> l i 
n e 2 <return> <up> <up> <C-return> <return> <tab> 
<C-return> <help-echo> M-x r e p o r t - e m <tab> 
b u <tab> <return>

Recent messages:
C-?:help M-p:pad M-o:open M-c:close M-b:blank M-s:string M-f:fill M-i:incr M-n:seq
line-move-visual: End of buffer [2 times]
Mark set
C-?:help M-p:pad M-o:open M-c:close M-b:blank M-s:string M-f:fill M-i:incr M-n:seq
line-move-visual: End of buffer [2 times]
ad-Orig-kill-line: End of buffer
Mark set
C-?:help M-p:pad M-o:open M-c:close M-b:blank M-s:string M-f:fill M-i:incr M-n:seq
Scanning for dabbrevs...100%
dabbrev-expand: No dynamic expansion for `cua-set-rec' found