$ git clone -n https://src.fedoraproject.org/rpms/golang-github-spf13-viper.git /var/lib/mock/f40-build-2348243-60141/root/chroot_tmpdir/scmroot/golang-github-spf13-viper
Cloning into '/var/lib/mock/f40-build-2348243-60141/root/chroot_tmpdir/scmroot/golang-github-spf13-viper'...
$ git fetch origin b1e3c183924aa2ce9fe1bcb680beb43a9af462e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-spf13-viper
 * [new ref]         b1e3c183924aa2ce9fe1bcb680beb43a9af462e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b1e3c18 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild