Как в KDE отключить запуск меню по кнопке WIN (Meta)

In KDE Plasma 5.8, the super/win key is also used to trigger the launcher, when pressed and released without combining it with another key. To disable the feature,

1. put this into ~/.config/kwinrc:

   [ModifierOnlyShortcuts]
   Meta=
   

2. then reload the window manager (kwin), either by logging out and logging back in, or with with this command:

   qdbus org.kde.KWin /KWin reconfigure
   

Equivalently run this

kwriteconfig5 --file kwinrc --group ModifierOnlyShortcuts --key Meta ""