Dnf module: COPR chroot is not applied correctly

[AlexFullmoon]

I am trying to fiddle with Bluefin LTS, which is based on CentOS 10. I've used my recipe for Fedora-based Bluefin, and run into a couple of issues.

Here's snippet of recipe:

  - type: dnf
    repos:
      copr:
        - name: scottames/ghostty
          chroot: fedora-42-x86_64
...
    install:
      packages:
        - ghostty

Here I set chroot to fedora-42 because project doesn't have one for epel-10. I get this error:

Errors during downloading metadata for repository 'copr:copr.fedorainfracloud.org:scottames:ghostty':
Status code: 404 for https://download.copr.fedorainfracloud.org/results/scottames/ghostty/fedora-10-x86_64/repodata/repomd.xml (IP: 18.172.134.76)

Note that it tries to download fedora-10-x86_64. As if 42 got replaced by OS version.

Am I missing something in the syntax?

[xynydev]

I have no idea what this could be. The code doesn't look to be doing any replacing: https://github.com/blue-build/modules/blob/46020bac9d2d4942ece9440cd51149deb0fbd938/modules/dnf/dnf.nu#L315

Made an issue: blue-build/modules#471

[AlexFullmoon]

Appears to be a bug in either dnf, dnf-plugins-core or something more arcane in Centos 10.

As temporary solution, after adding repo set baseurl directly, e.g. dnf config-manager --save --setopt=*.baseurl=https://download.copr.fedorainfracloud.org/results/scottames/ghostty/fedora-42-x86_64/ copr:copr.fedorainfracloud.org:scottames:ghostty