* lisp/tab-bar.el (tab-bar-switch-to-last-tab): Add 'abs' for precautions.

https://lists.gnu.org/archive/html/emacs-devel/2021-11/msg01149.html

diff --git a/lisp/tab-bar.el b/lisp/tab-bar.el
index cfd766d54951f080e73f5f8e9b809080c187087a..68d28306dd9563e9e80549ba21654a708ece225c 100644 (file)
--- a/lisp/tab-bar.el
+++ b/lisp/tab-bar.el
@@ -1175,7 +1175,7 @@ which means the last tab on the tab bar.  For example, `C-u 2
 <MODIFIER>-9' selects the tab before the last tab."
   (interactive "p")
   (tab-bar-select-tab (- (length (funcall tab-bar-tabs-function))
-                         (1- (or arg 1)))))
+                         (1- (abs (or arg 1))))))
 
 (defun tab-bar-switch-to-recent-tab (&optional arg)
   "Switch to ARGth most recently visited tab.