I think this might actually be libdbusmenu-qt's bug. If the "children-display" menu is not immutable in the libdbusmenu-gtk version, then it shouldn't be in libdbusmenu-qt either.
I think this might actually be libdbusmenu-qt's bug. If the "children-display" menu is not immutable in the libdbusmenu-gtk version, then it shouldn't be in libdbusmenu-qt either.