Fix .dir-local.el caching for symlinks

* lisp/files.el (dir-locals-read-from-dir): We want the time stamp
of the actual file, not the time stamp of the symlink (if
.dir-locals.el is a symlink) (bug#46122).

1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/files.el b/lisp/files.el
index 22fccb151cd..a804f0088ee 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -4497,7 +4497,7 @@ Return the new class name, which is a symbol named DIR."
     (with-demoted-errors "Error reading dir-locals: %S"
       (dolist (file files)
         (let ((file-time (file-attribute-modification-time
-                          (file-attributes file))))
+                          (file-attributes (file-chase-links file)))))
           (if (time-less-p latest file-time)
             (setq latest file-time)))
         (with-temp-buffer