master dfdc0f5fb7: Fix xref-clear-marker-stack refactoring mistake

[Mattias Engdegård]

branch: master
commit dfdc0f5fb7b10e737c3c8e2bdb1eb873a1e91bd7
Author: Mattias Engdegård <mattiase@acm.org>
Commit: Mattias Engdegård <mattiase@acm.org>

    Fix xref-clear-marker-stack refactoring mistake
    
    * lisp/progmodes/xref.el (xref-clear-marker-stack):
    Clear the history correctly.  Changing a lexical variable has no effect.
---
 lisp/progmodes/xref.el | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lisp/progmodes/xref.el b/lisp/progmodes/xref.el
index 916d83d407..4db0df6c3b 100644
--- a/lisp/progmodes/xref.el
+++ b/lisp/progmodes/xref.el
@@ -568,7 +568,8 @@ This can be used from `xref-after-jump-hook', for 
instance.")
     (dolist (l (list (car history) (cdr history)))
       (dolist (m l)
         (set-marker m nil nil)))
-    (setq history (cons nil nil)))
+    (setcar history nil)
+    (setcdr history nil))
   nil)
 
 ;;;###autoload