[[ https://phabricator.kde.org/source/kxmlgui/browse/master/src/kmainwindow.cpp;302aee4debe1029c50df381149d854be5e0481c0$465 | restore ]]
[[ https://phabricator.kde.org/source/kxmlgui/browse/master/src/kmainwindow.cpp;302aee4debe1029c50df381149d854be5e0481c0$622 | readPropertiesInternal ]]
[[ https://phabricator.kde.org/source/kxmlgui/browse/master/src/kmainwindow.cpp;302aee4debe1029c50df381149d854be5e0481c0$653 | applyMainWindowSettings ]]
[[ https://phabricator.kde.org/source/kxmlgui/browse/master/src/kmainwindow.cpp;302aee4debe1029c50df381149d854be5e0481c0$664 | HERE ]]
It's called winId, but part it's not created (it's done [[ https://phabricator.kde.org/source/kxmlgui/browse/master/src/kmainwindow.cpp;302aee4debe1029c50df381149d854be5e0481c0$646 | here ]])