On Raspberry Pi 5, regression of `error: i686 Linux package set can only be used with the x86 family.`

[Supermath101]

On my Raspberry Pi 5 running Raspberry Pi OS 64-bit, running the command:

nix-env -iE '(_: let nixgl = import (fetchTarball "https://github.com/nix-community/nixGL/archive/main.tar.gz") {}; in nixgl.nixGLMesa)'

outputs an error message:

error: i686 Linux package set can only be used with the x86 family.

This seems to be a regression of issue #150. Especially since the non-upstream fix (the following command) worked:

nix-env -iE '(_: let nixgl = import (fetchTarball "https://github.com/nix-community/nixGL/archive/main.tar.gz") {enable32bits = false;}; in nixgl.nixGLMesa)'