When calling showNormal() then depending on the show calls before it, it might not restore the window

When calling showNormal() then depending on the show calls before it, it might not restore the window. For example, if you do:

w.show();
w.showMaximized();
w.showMinimized();
w.showNormal();

then it will end up being maximized, instead as what might be expected which is for it to be shown as a restored window. If the showMinimized() call is commented out then it behaves as expected.