disconnect m_tasksModel before marking it for deletion
otherwise we might get further signals from it and subsequently crash when trying to call m_tasksModel->index() in the slot lambda again
BUG: 435811 FIXED-IN: 5.22
otherwise we might get further signals from it and subsequently crash when trying to call m_tasksModel->index() in the slot lambda again
BUG: 435811 FIXED-IN: 5.22