Same bug here. Official Ubuntu 16.04:
kitchen:~$ xinput --list --short ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ MOSART Semi. 2.4G Keyboard Mouse id=11 [slave pointer (2)] ⎜ ↳ MCE IR Keyboard/Mouse (nuvoton-cir) id=13 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ Power Button id=8 [slave keyboard (3)] ↳ Sleep Button id=9 [slave keyboard (3)] ↳ MOSART Semi. 2.4G Keyboard Mouse id=10 [slave keyboard (3)] ↳ Nuvoton w836x7hg Infrared Remote Transceiver id=12 [slave keyboard (3)]
Same bug here. Official Ubuntu 16.04:
kitchen:~$ xinput --list --short
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ MOSART Semi. 2.4G Keyboard Mouse id=11 [slave pointer (2)]
⎜ ↳ MCE IR Keyboard/Mouse (nuvoton-cir) id=13 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Power Button id=8 [slave keyboard (3)]
↳ Sleep Button id=9 [slave keyboard (3)]
↳ MOSART Semi. 2.4G Keyboard Mouse id=10 [slave keyboard (3)]
↳ Nuvoton w836x7hg Infrared Remote Transceiver id=12 [slave keyboard (3)]