update packages

lisp/diff-hl/diff-hl-margin.el

@@ -1,6 +1,6 @@
 ;;; diff-hl-margin.el --- Highlight buffer changes on margins -*- lexical-binding: t -*-
 
-;; Copyright (C) 2012-2017  Free Software Foundation, Inc.
+;; Copyright (C) 2012-2025  Free Software Foundation, Inc.
 
 ;; This file is part of GNU Emacs.
 
@@ -147,7 +147,15 @@ You probably shouldn't use this function directly."
                         ,(propertize char 'face
                                      (intern (format "diff-hl-margin-%s" type)))))))))
 
+(defun diff-hl-margin-ensure-visible ()
+  (let ((width-var (intern (format "%s-margin-width" diff-hl-side))))
+    (when (zerop (symbol-value width-var))
+      (set width-var 1)
+      (dolist (win (get-buffer-window-list))
+        (set-window-buffer win (current-buffer))))))
+
 (defun diff-hl-highlight-on-margin (ovl type _shape)
+  (diff-hl-margin-ensure-visible)
   (let ((spec (cdr (assoc (cons type diff-hl-side)
                           (diff-hl-margin-spec-cache)))))
     (overlay-put ovl 'before-string spec)))