Comment change.

1 files changed, 3 insertions, 0 deletions

diff --git a/lisp/autorevert.el b/lisp/autorevert.el
index ecf768c5732..5f6d26bfabb 100644
--- a/lisp/autorevert.el
+++ b/lisp/autorevert.el
@@ -421,6 +421,9 @@ This is an internal function used by Auto-Revert Mode."
            'no-mini t))
         (if auto-revert-tail-mode
             (auto-revert-tail-handler)
+          ;; Bind buffer-read-only in case user has done C-x C-q,
+          ;; so as not to forget that.  This gives undesirable results
+          ;; when the file's mode changes, but that is less common.
           (let ((buffer-read-only buffer-read-only))
             (revert-buffer 'ignore-auto 'dont-ask 'preserve-modes)))
         (when buffer-file-name