(dired-internal-noselect): a zero modtime means directory is unchanged.

diff --git a/lisp/dired.el b/lisp/dired.el
index fa1d8ae3bbffb3eb7f2881d72fef001768706adb..f65197b41183fb7fbb2f885e5ea6c81a6fb167c6 100644 (file)
--- a/lisp/dired.el
+++ b/lisp/dired.el
@@ -402,7 +402,8 @@ If DIRNAME is already in a dired buffer, that buffer is used without refresh."
          ;; If directory has changed on disk, offer to revert.
          (if (let ((attributes (file-attributes dirname))
                    (modtime (visited-file-modtime)))
-               (or (not (eq (car attributes) t))
+               (or (eq modtime 0)
+                   (not (eq (car attributes) t))
                    (and (= (car (nth 5 attributes)) (car modtime))
                         (= (nth 1 (nth 5 attributes)) (cdr modtime)))))
              nil