bug#11795: 24.1.50; wdired: C-c C-c loses marks and positions of renamed files

[martin rudalics]

>> The call to `dired-mark-remembered' should be wrapped in a
>> `save-excursion', else it may move point to another position.

Can someone explain why `dired-mark-remembered' cannot do:

(defun dired-mark-remembered (alist)
  "Mark all files remembered in ALIST.
Each element of ALIST looks like (FILE . MARKERCHAR)."
  (let (elt fil chr)
    (save-excursion
      (while alist
        (setq elt (car alist)
              alist (cdr alist)
              fil (car elt)
              chr (cdr elt))
        (when (dired-goto-file fil)
          (beginning-of-line)
          (delete-char 1)
          (insert chr))))))

martin