> > When in your original test case '(pop-to-buffer "*Occur*")' is replaced > with '(kill-current-buffer)': > > (define-key isearch-mode-map (kbd "M-s o") > #'(lambda () > (interactive) > (call-interactively 'isearch-occur) > (kill-current-buffer))) > > then it fails with: > > Error in post-command-hook (isearch-post-command-hook): (error "Selecting deleted buffer") > > All other uses of 'isearch--current-buffer' have a check for a live > buffer, e.g. > > (unless (eq (current-buffer) isearch--current-buffer) > (when (buffer-live-p isearch--current-buffer) > (with-current-buffer isearch--current-buffer > Indeed, updated patch attached.