Update frame title when redisplay scrolls selected window

* src/xdisp.c (redisplay_window): Reconsider the frame's title
when the mode-line of the frame's selected window needs to be
updated.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/xdisp.c b/src/xdisp.c
index 057671246e3..bdf2d09179e 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -16854,7 +16854,8 @@ redisplay_window (Lisp_Object window, bool just_this_one_p)
 
  finish_menu_bars:
 
-  /* When we reach a frame's selected window, redo the frame's menu bar.  */
+  /* When we reach a frame's selected window, redo the frame's menu
+     bar and the frame's title.  */
   if (update_mode_line
       && EQ (FRAME_SELECTED_WINDOW (f), window))
     {
@@ -16889,6 +16890,7 @@ redisplay_window (Lisp_Object window, bool just_this_one_p)
             ignore_mouse_drag_p = true;
 #endif
         }
+      x_consider_frame_title (w->frame);
 #endif
     }