reader mode keybinding ctrl-alt-r makes mercury crash

[KiaraGrouwstra]

reader mode works on mercury-browser for me clicking the button on the right in the address bar. trying to trigger it using the keyboard shortcut ctrl-alt-r tho has had the browser crash for me.

version: Alex313031 Mercury 115.4.0esr

it it matters, i installed it using a copy of the outstanding PR to nixpkgs