*** /tmp/ediffv7q1Ft	2021-03-28 14:10:16.784777579 +0200
--- /home/albinus/src/emacs-27/test/lisp/autorevert-tests.el	2021-03-28 14:07:52.481983870 +0200
***************
*** 131,137 ****
                         (format-message
                          "Reverting buffer `%s'\\." (buffer-name buffer))
                         auto-revert--messages)))
!       (if (with-current-buffer buffer auto-revert-use-notify)
            (read-event nil nil 0.1)
          (sleep-for 0.1)))))

--- 131,139 ----
                         (format-message
                          "Reverting buffer `%s'\\." (buffer-name buffer))
                         auto-revert--messages)))
!       (if (and (or file-notify--library
!                    (file-remote-p temporary-file-directory))
!                (with-current-buffer buffer auto-revert-use-notify))
            (read-event nil nil 0.1)
          (sleep-for 0.1)))))