bug#5067: 23.1.50; Why doesn't eshell/pcomplete use ~ any more?

[Leo]

I just upgraded my Emacs.app to CVS 20091127 and eshell seems to behave
abnormally as compared to my previous version (CVS 20090922).

For example, if I 'cd ~', the prompt will be the absolute path of my
HOME dir instead of just '~' like in the previous version.

With (setq eshell-cmpl-ignore-case t), 'cd ~/l<TAB>' throws this error:

  pcomplete-insert-entry: Text is read-only
  pcomplete: Wrong type argument: integerp, nil [8 times]

Could someone take a look at this bug? Thank you.

Leo

--------------------------------

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In GNU Emacs 23.1.50.1 (i386-apple-darwin9.8.0, NS apple-appkit-949.54)
 of 2009-11-27 on victoria.local
Windowing system distributor `Apple', version 10.3.949
configured using `configure  '--with-ns''

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

Major mode: LaTeX/FMP

Minor modes in effect:
  diff-auto-refine-mode: t
  shell-dirtrack-mode: t
  reftex-mode: t
  TeX-fold-mode: t
  LaTeX-math-mode: t
  TeX-PDF-mode: t
  dired-omit-mode: t
  recentf-mode: t
  icomplete-mode: t
  ido-everywhere: t
  savehist-mode: t
  display-time-mode: t
  xterm-mouse-mode: t
  delete-selection-mode: t
  global-auto-revert-mode: t
  minibuffer-depth-indicate-mode: t
  show-paren-mode: t
  rcirc-track-minor-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
  visual-line-mode: t
  transient-mark-mode: t