Merge pull request #61489 from Rindbee/reset-buttons_visible-to-false-if-tabs-is-empty

Reset buttons_visible to false while tabs is empty in TabBar::_update_cache

scene/gui/tab_bar.cpp

@@ -862,6 +862,7 @@ void TabBar::_update_hover() {
 
 void TabBar::_update_cache() {
 	if (tabs.is_empty()) {
+		buttons_visible = false;
 		return;
 	}