Duplicate Symbols on Different Shift Levels Cause Shortcuts to Misbehave

E.g. setting ctrl-§ as hotkey kills ctrl-w

Steps to reproduce: xfconf-query -c xfce4-keyboard-shortcuts -p "/commands/custom/<Primary>section" -n -t string -s foo

Now you have non-working ctrl-w

If I remove the hotkey with: xfconf-query -c xfce4-keyboard-shortcuts -p "/commands/custom/<Primary>section" -r

It works again.

Setting ctrl-alt-§ or windows-§ works though.