Nixpkgs version

• Stable (25.05)

Describe the bug

uradvd makes explicit use of the fields pname and version.

But for some reason pname is not correctly passed out into the channel summary, but contains an artifact of version as well.

configured pname: uradvd
reported pname: uradvd-r26

I'm new to nix, so this might be very well an issue in a different nix repo.
Please feel free to send me over, if that's the case.

Steps to reproduce

Compare the current pname:
https://github.com/NixOS/nixpkgs/blob/nixos-25.05/pkgs/by-name/ur/uradvd/package.nix#L11

with the reported one

curl -Ls https://channels.nixos.org/nixos-25.05/packages.json.br | brotli -d | jq | grep 'pname.*uradvd'
"pname": "uradvd-r26",

Expected behaviour

The reported pname of packages should match the configured pname.

Screenshots

No response

Relevant log output

Additional context

No response

System metadata

 - system: `"x86_64-linux"`
 - host os: `Linux 6.12.40, NixOS, 25.05 (Warbler), 25.05.807209.1f08a4df998e`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.28.4`
 - channels(root): `"home-manager-25.05.tar.gz, nixos-25.05"`
 - nixpkgs: `/nix/store/cgfhd6dvaml5h4863wybi63ryp6mwy2f-nixos-25.05/nixos`

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