$ git clone -n https://src.fedoraproject.org/rpms/nik4.git /var/lib/mock/f38-build-side-42-init-devel-1392245-30890/root/chroot_tmpdir/scmroot/nik4
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1392245-30890/root/chroot_tmpdir/scmroot/nik4'...
$ git fetch origin e9d6f6252e15efc4a20243db1d7af5c76d1e40e5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nik4
 * [new ref]         e9d6f6252e15efc4a20243db1d7af5c76d1e40e5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e9d6f62 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild