From: Eli Zaretskii <eliz@gnu.org>
Date: Thu, 6 Mar 2025 08:51:45 +0000 (+0200)
Subject: Fix redisplay of tab bar when its text properties change
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=442b2debd21b35ec7e809ed0e980bd4688c4d57e;p=emacs.git

Fix redisplay of tab bar when its text properties change

* src/xdisp.c (update_tab_bar): Use 'equal-including-properties'
to compare previous with the current tab-bar items.  (Bug#76760)

(cherry picked from commit bf027eb6ff267162c116006703698668794d37cc)
---

diff --git a/src/xdisp.c b/src/xdisp.c
index e06c398af3b..5ca713f099c 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -14368,7 +14368,10 @@ update_tab_bar (struct frame *f, bool save_match_data)
 
 	  /* Redisplay the tab-bar if we changed it.  */
 	  if (new_n_tab_bar != f->n_tab_bar_items
-	      || NILP (Fequal (new_tab_bar, f->tab_bar_items)))
+	      /* Some features modify the appearance of the tab bar by
+                 manipulating the text properties.  */
+	      || NILP (Fequal_including_properties (new_tab_bar,
+						    f->tab_bar_items)))
             {
               /* Redisplay that happens asynchronously due to an expose event
                  may access f->tab_bar_items.  Make sure we update both