anchor.diff:            (mapcar #'active-buffer (window-list)))
           (buffers (buffer-list)))
       (alex:when-let ((diff (set-difference buffers active-buffers)))
  -                   ;; Display the most recent inactive buffer.
  -                   (sort-by-time diff))))
  +      ;; Display the most recent inactive buffer.
  +      (sort-by-time diff))))
   
   (define-command copy-url ()
     "Save current URL to clipboard."
  
positive.code:   (unless no-history-p
      ;; Register buffer in global history:
      (files:with-file-content (history (history-file buffer)
                                 :default (make-history-tree buffer))
        ;; Owner may already exist if history was just created with the above
        ;; default value.
        (unless (htree:owner history (id buffer))
  
negative.code:   "Prompt for a URL and set it in a new focused buffer."
    (let ((history (set-url-history *browser*))
          (return-actions (list (lambda-command new-buffer-load (suggestion-values)
                                  "Load URL(s) in new buffer(s)"
                                  (mapc (lambda (suggestion) (make-buffer :url (url suggestion)))
                                        (rest suggestion-values))
                                  (make-buffer-focus :url (url (first suggestion-values)))))))
      (pushnew-url-history history (url (current-buffer)))
      (prompt
       :prompt "Open URL in new buffer"
  