From 7a1272168af1a5b82979efa29451147c5d867981 Mon Sep 17 00:00:00 2001
From: Dmitry Gutov <dgutov@yandex.ru>
Date: Mon, 20 Mar 2023 20:18:42 +0200
Subject: * lisp/treesit.el (treesit-end-of-defun): Guard arg against nil
 (bug#62158).

---
 lisp/treesit.el | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lisp/treesit.el b/lisp/treesit.el
index c118f5d52a4..b271a1f0c4b 100644
--- a/lisp/treesit.el
+++ b/lisp/treesit.el
@@ -1882,6 +1882,7 @@ this function depends on `treesit-defun-type-regexp' and
 `treesit-defun-skipper'."
   (interactive "^p\nd")
   (let ((orig-point (point)))
+    (if (or (null arg) (= arg 0)) (setq arg 1))
     (catch 'done
       (dotimes (_ 2) ; Not making progress is better than infloop.
 
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