$ git clone -n https://src.fedoraproject.org/rpms/laughlin-backgrounds.git /var/lib/mock/f40-build-2067864-49291/root/chroot_tmpdir/scmroot/laughlin-backgrounds
Cloning into '/var/lib/mock/f40-build-2067864-49291/root/chroot_tmpdir/scmroot/laughlin-backgrounds'...
$ git fetch origin 95ed2af85d20798ec181a1f6ae08e5245d337d6c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/laughlin-backgrounds
 * [new ref]         95ed2af85d20798ec181a1f6ae08e5245d337d6c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 95ed2af Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild