From: Richard M. Stallman <rms@gnu.org>
Date: Wed, 25 May 1994 04:41:21 +0000 (+0000)
Subject: (outline-chart-subtree): Include outline-next-heading in loop conditions
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(outline-chart-subtree): Include outline-next-heading in loop conditions
to detect end-of-buffer (and avoid infinite loop).
---

diff --git a/lisp/allout.el b/lisp/allout.el
index 8f87eca6666..dde6c4cdca4 100644
--- a/lisp/allout.el
+++ b/lisp/allout.el
@@ -1453,9 +1453,9 @@ starting point, and PREV-DEPTH is depth of prior topic."
 			   (or (outline-next-sibling curr-depth)
 			       ;; or no more siblings - proceed to
 			       ;; next heading at lesser depth:
-			       (while (<= curr-depth
-					  (outline-recent-depth))
-				 (outline-next-heading)))
+			       (while (and (<= curr-depth
+					       (outline-recent-depth))
+					   (outline-next-heading))))
 			 (outline-next-heading)))
 
 		      ((and (< prev-depth curr-depth)