🚀 go-pugleaf

In 19.25, it is impossible to N over a nonexistent article, whereas this works
reasonably in 18.59

19.25:


(defun news-select-message (arg)
  (if (stringp arg) (setq arg (string-to-int arg)))
  (let ((file (concat news-path
		      (string-subst-char ?/ ?. news-current-news-group)
		      "/" arg)))
    (if (file-exists-p file)
	(let ((buffer-read-only ()))
	  (if (= arg 
		 (or (news-cadr (memq (news-cdar news-point-pdl) news-list-of-files))
		     0))
	      (setcdr (car news-point-pdl) arg))
	  (setq news-current-message-number arg)
	  (news-read-in-file file)
	  (news-set-mode-line))
      (error "Article %d nonexistent" arg))))

18.59:

(defun news-select-message (arg)
  (if (stringp arg) (setq arg (string-to-int arg)))
  (let ((file (concat news-path
		      (string-subst-char ?/ ?. news-current-news-group)
		      "/" arg)))
    (if (= arg
  	   (or (news-cadr (memq (news-cdar news-point-pdl) news-list-of-files))
  	       0))
  	(setcdr (car news-point-pdl) arg))
    (setq news-current-message-number arg)
    (if (file-exists-p file)
  	(let ((buffer-read-only nil))
  	  (news-read-in-file file)
  	  (news-set-mode-line))
      (news-set-mode-line)
      (error "Article %d nonexistent" arg))))

Is there some reason to make skipping over nonexistent articles painful?  The
18.59 code signals an error but has arranged to keep going, whereas the 19.25
code stops dead, since news-current-message-number never gets updated.

		Leonard