$ git clone -n https://src.fedoraproject.org/rpms/jsonnet.git /var/lib/mock/f38-build-side-42-init-devel-722201-27298/root/chroot_tmpdir/scmroot/jsonnet
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-722201-27298/root/chroot_tmpdir/scmroot/jsonnet'...
$ git fetch origin 2011927f6a6d2b22648603fbc773f7e2149b4366:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jsonnet
 * [new ref]         2011927f6a6d2b22648603fbc773f7e2149b4366 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2011927 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild