$ git clone -n https://src.fedoraproject.org/rpms/rust-kvm-bindings.git /var/lib/mock/f45-build-42815-796/root/chroot_tmpdir/scmroot/rust-kvm-bindings
Cloning into '/var/lib/mock/f45-build-42815-796/root/chroot_tmpdir/scmroot/rust-kvm-bindings'...
$ git fetch origin 83f1e91a872e32b36a6e2913a1c54b004e7c3e64:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-kvm-bindings
 * [new ref]         83f1e91a872e32b36a6e2913a1c54b004e7c3e64 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 83f1e91 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild