to reproduce:

1. start the process of binding a key or key combo to any action, for example by clicking with the mouse on a GUI binding button
2. hold down the Hyper key (specifically, the key emits keysym 0xffee, defined in /usr/include/X11/keysym.h as Hyper_R, as the output of /usr/bin/xev confirms)

observed result:

the GUI binding button's text changes to "Meta+ ..."

expected result:

the GUI binding button's text changes to "Hyper+ ..."


Likewise, holding the Super key (keysym 0xffeb, Super_L) is also misidentified as Meta.


The other modifier keys Ctrl, Shift, Alt, Meta work fine, though.