bug#47164: Cuirass specification complains about missing guix channel when a non-guix channel gets a new commit alone

[Mathieu Othacehe]

Hello David,

> Thanks. I forked ur test-channel and updated my specs accordingly and it only
> works the first evaluation, until I push a new commit to the config channel,
> then Im getting this:

Ludo experienced the same issue. I fixed it with
ac29d37e2ffd7a85adfcac9be4d5bce018289bec and updated the Cuirass package
accordingly.

Mathieu