bug#41427: 26.3; quoting in csv-mode does not work

[Spaulding, Jeff]

Create a file with the following contents:
something,"blah,blah",something

Run emacs-q

Run the following in the scratch buffer:
(add-to-list 'load-path "~/.emacs.d/elpa/csv-mode-1.12/")
(require 'csv-mode)
(add-to-list 'auto-mode-alist '("\\.[Cc][Ss][Vv]\\'" . csv-mode))

Load the file created earlier with find-file.

Move point to the second `blah'.  In the modeline, it reports it is on
field 3, not field 2.


In GNU Emacs 26.3 (build 1, x86_64-pc-linux-gnu, X toolkit, Xaw scroll bars)
 of 2020-01-28 built on LT3AV7KMK
Windowing system distributor 'The Cygwin/X Project', version 11.0.12001000
Recent messages:
Quit
("~/.emacs.d/elpa/csv-mode-1.12/" "/usr/local/share/emacs/26.3/site-lisp" 
"/usr/local/share/emacs/site-lisp" "/usr/local/share/emacs/26.3/lisp" 
"/usr/local/share/emacs/26.3/lisp/vc" "/usr/local/share/emacs/26.3/lisp/url" 
"/usr/local/share/emacs/26.3/lisp/textmodes" 
"/usr/local/share/emacs/26.3/lisp/progmodes" 
"/usr/local/share/emacs/26.3/lisp/play" "/usr/local/share/emacs/26.3/lisp/org" 
"/usr/local/share/emacs/26.3/lisp/nxml" "/usr/local/share/emacs/26.3/lisp/net" 
...)
csv-mode
Undo! [5 times]
<pause> is undefined
Undo! [3 times]
Mark set
(("\\.tsv\\'" . tsv-mode) ("\\.[Cc][Ss][Vv]\\'" . csv-mode) 
("\\.gpg\\(~\\|\\.~[0-9]+~\\)?\\'" nil epa-file) 
("\\.\\(?:3fr\\|a\\(?:rw\\|vs\\)\\|bmp[23]?\\|c\\(?:als?\\|myka?\\|r[2w]\\|u[rt]\\)\\|d\\(?:c[mrx]\\|ds\\|jvu\\|ng\\|px\\)\\|exr\\|f\\(?:ax\\|its\\)\\|gif\\(?:87\\)?\\|hrz\\|ic\\(?:on\\|[bo]\\)\\|j\\(?:2c\\|ng\\|p\\(?:eg\\|[2cg]\\)\\)\\|k\\(?:25\\|dc\\)\\|m\\(?:iff\\|ng\\|rw\\|s\\(?:l\\|vg\\)\\|tv\\)\\|nef\\|o\\(?:rf\\|tb\\)\\|p\\(?:bm\\|c\\(?:ds\\|[dltx]\\)\\|db\\|ef\\|gm\\|i\\(?:ct\\|x\\)\\|jpeg\\|n\\(?:g\\(?:24\\|32\\|8\\)\\|[gm]\\)\\|pm\\|sd\\|tif\\|wp\\)\\|r\\(?:a[fs]\\|gb[ao]?\\|l[ae]\\)\\|s\\(?:c[rt]\\|fw\\|gi\\|r[2f]\\|un\\|vgz?\\)\\|t\\(?:ga\\|i\\(?:ff\\(?:64\\)?\\|le\\|m\\)\\|tf\\)\\|uyvy\\|v\\(?:da\\|i\\(?:car\\|d\\|ff\\)\\|st\\)\\|w\\(?:bmp\\|pg\\)\\|x\\(?:3f\\|bm\\|cf\\|pm\\|wd\\|[cv]\\)\\|y\\(?:cbcra?\\|uv\\)\\)\\'"
 . image-mode) ("\\.elc\\'" . elisp-byte-code-mode) ("\\.zst\\'" nil jka-compr) 
("\\.dz\\'" nil jka-compr) ("\\.xz\\'" nil jka-compr) ("\\.lzma\\'" nil 
jka-compr) ("\\.lz\\'" nil jka-compr) ("\\.g?z\\'" nil jka-compr) ("\\.bz2\\'" 
nil jka-compr) ...)
completing-read-default: Command attempted to use minibuffer while in minibuffer
Quit [3 times]

Configured using:
 'configure --with-x --with-modules --with-x-toolkit=lucid
 --with-sound=no --with-mailutils'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK DBUS GSETTINGS GLIB NOTIFY
LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS LUCID X11 XDBE XIM MODULES THREADS LIBSYSTEMD LCMS2

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: CSV

Minor modes in effect:
  csv-field-index-mode: t
  diff-auto-refine-mode: t
  electric-pair-mode: t
  tooltip-mode: t
  global-eldoc-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

Load-path shadows:
None found.

Features:
(shadow mail-extr emacsbug message rmc puny seq byte-opt bytecomp
byte-compile cconv dired dired-loaddefs format-spec rfc822 mml mml-sec
password-cache epa epg epg-config gnus-util rmail rmail-loaddefs
mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils
mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr
mail-utils dabbrev csv-mode cl-macs gv sort pcase derived cl-loaddefs
cl-lib cus-start cus-load vc-git diff-mode easymenu easy-mmode thingatpt
find-func elec-pair time-date mule-util tooltip eldoc electric uniquify
ediff-hook vc-hooks lisp-float-type mwheel term/x-win x-win
term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe
tabulated-list replace newcomment text-mode elisp-mode lisp-mode
prog-mode register page menu-bar rfn-eshadow isearch timer select
scroll-bar mouse jit-lock font-lock syntax facemenu font-core
term/tty-colors frame cl-generic cham georgian utf-8-lang misc-lang
vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932
hebrew greek romanian slovak czech european ethiopic indian cyrillic
chinese composite charscript charprop case-table epa-hook jka-cmpr-hook
help simple abbrev obarray minibuffer cl-preloaded 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 threads dbusbind inotify lcms2 dynamic-setting
system-font-setting font-render-setting x-toolkit x multi-tty
make-network-process emacs)

Memory information:
((conses 16 118269 10192)
 (symbols 48 22157 1)
 (miscs 40 121 273)
 (strings 32 33320 1183)
 (string-bytes 1 865204)
 (vectors 16 15035)
 (vector-slots 8 513395 7838)
 (floats 8 62 424)
 (intervals 56 382 102)
 (buffers 992 14))