$ git clone -n https://src.fedoraproject.org/rpms/rubygem-fog-libvirt.git /var/lib/mock/f40-build-2496898-61664/root/chroot_tmpdir/scmroot/rubygem-fog-libvirt
Cloning into '/var/lib/mock/f40-build-2496898-61664/root/chroot_tmpdir/scmroot/rubygem-fog-libvirt'...
$ git fetch origin 4a6edf57b422e279b3dbe6162c1e2a62dff3b76e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-fog-libvirt
 * [new ref]         4a6edf57b422e279b3dbe6162c1e2a62dff3b76e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a6edf5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild