Suddenly setting caps:escape in xkb settings does not work anymore

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1

I have been remapping caps lock to escape since starting nixos, and it has always worked.

Now I updated nixpkgs and suddenly caps lock is caps lock. I found nothing in here nor in the nixpkgs issues.

Current nixpkgs rev: b024ced1aac25639f8ca8fdfc2f8c4fbd66c48ef
Updated nixpkgs rev: adaa24fbf46737f3f1b5497bf64bae750f82942e

This is the configuration I have been using:

services.xserver.xkb = {
  layout = "us";
  model = "pc104";
  options = "caps:escape";
  variant = "altgr-intl";
};

I have always been on GNOME.