In new version 0.19 there's a bug with the keybindings like ctrl+c, ctrl+x in non-english keyboard layout.
The keybindigs don't work at all until I switch layout to english.
Old version 0.18 worked properly.
os: archlinux, de: xfce
Works for me with at least Russian and Hebrew layouts on Geany 1.23 (git >= c05f1bd GTK 2.24.10, GLib 2.30.2.
Will close if no further comment in a couple of weeks.