(dired-find-buffer-nocreate): Avoid error if dired-directory is nil.

59759f1f · Richard M. Stallman · 334a2130 · 59759f1f
Commit 59759f1f authored Feb 04, 2003 by Richard M. Stallman
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lisp/dired.el lisp/dired.el +1 -0

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--- a/lisp/dired.el
+++ b/lisp/dired.el
@@ -589,6 +589,7 @@ If DIRNAME is already in a dired buffer, that buffer is used without refresh."
 	(save-excursion
 	  (set-buffer (cdr (car blist)))
 	  (if (and (eq major-mode mode)
+		   dired-directory  ;; nil during find-alternate-file
 		   (equal dirname
 			  (expand-file-name
 			   (if (consp dired-directory)