--- a/eric7/WebBrowser/TabManager/TabManagerWidget.py Tue Jun 08 19:29:24 2021 +0200 +++ b/eric7/WebBrowser/TabManager/TabManagerWidget.py Tue Jun 08 19:33:51 2021 +0200 @@ -244,15 +244,14 @@ else: parentItem = None itm = QTreeWidgetItem(parentItem) - flags = itm.flags() if parent: - flags |= Qt.ItemFlag.ItemIsUserCheckable + addFlags = Qt.ItemFlag.ItemIsUserCheckable else: - flags |= ( + addFlags = ( Qt.ItemFlag.ItemIsUserCheckable | Qt.ItemFlag.ItemIsAutoTristate ) - itm.setFlags(itm.flags() | flags) + itm.setFlags(itm.flags() | addFlags) itm.setCheckState(0, Qt.CheckState.Unchecked) return itm