https://forum.qt.io/topic/41807/solved-qtabwidget-settabbar-really-undefined-behavior
[Solved] QTabWidget:setTabBar() -- really undefined behavior? | Qt Forum
May 25, 2014 - I would like to completely repopulate a QTabWidget with a different group of tabs, quickly and simply. I cleverly thought, aha! I could maintain two differe...
undefined behaviorsolvedreallyqtforum