TabContainer tabs move on select, but TabBar tabs do not [Regression]

[nathanfranke]

Tested versions

• Reproducible in 129332e (Regression from Option to put TabContainer tabs at bottom #82468)
• Not reproducible in 35da70f

System information

Arch Linux, kernel 6.10.9-arch1-2

Issue description

See video:

First element is TabBar, second element is TabContainer

2024-09-17.21-52-06.mp4

Tentative workaround in NOTIFICATION_RESIZED:

diff --git a/scene/gui/tab_bar.cpp b/scene/gui/tab_bar.cpp
index 90a6626b74..28bd03ff06 100644
--- a/scene/gui/tab_bar.cpp
+++ b/scene/gui/tab_bar.cpp
@@ -381,7 +381,6 @@ void TabBar::_notification(int p_what) {
                        int max_old = max_drawn_tab;
 
                        _update_cache();
-                       _ensure_no_over_offset();
 
                        if (scroll_to_selected && (offset != ofs_old || max_drawn_tab != max_old)) {
                                ensure_tab_visible(current);

Steps to reproduce

• Launch MRP
• press right arrow
• select a tab

Minimal reproduction project (MRP)

test_tab_container.zip

[akien-mga]

CC @kitbdev