$ git clone -n https://src.fedoraproject.org/rpms/nodejs-backbone.git /var/lib/mock/f40-build-2050116-49022/root/chroot_tmpdir/scmroot/nodejs-backbone
Cloning into '/var/lib/mock/f40-build-2050116-49022/root/chroot_tmpdir/scmroot/nodejs-backbone'...
$ git fetch origin de8b9e0d04f46dafad2b332bf334c4e42aede9e1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nodejs-backbone
 * [new ref]         de8b9e0d04f46dafad2b332bf334c4e42aede9e1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de8b9e0 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild