$ git clone -n https://src.fedoraproject.org/rpms/ghc-lukko.git /var/lib/mock/f40-build-2286380-55710/root/chroot_tmpdir/scmroot/ghc-lukko
Cloning into '/var/lib/mock/f40-build-2286380-55710/root/chroot_tmpdir/scmroot/ghc-lukko'...
$ git fetch origin 3450a3462d954a2061a4decaf6eced5179ee97b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-lukko
 * [new ref]         3450a3462d954a2061a4decaf6eced5179ee97b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3450a34 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild