$ git clone -n https://src.fedoraproject.org/rpms/newtonsoft-json.git /var/lib/mock/f38-build-718700-96749/root/chroot_tmpdir/scmroot/newtonsoft-json
Cloning into '/var/lib/mock/f38-build-718700-96749/root/chroot_tmpdir/scmroot/newtonsoft-json'...
$ git fetch origin 532d48b5a4b25330577a8c2ac8177723e5228a59:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/newtonsoft-json
 * [new ref]         532d48b5a4b25330577a8c2ac8177723e5228a59 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 532d48b Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild