$ git clone -n https://src.fedoraproject.org/rpms/rpm.git /var/lib/mock/f40-build-2321935-58618/root/chroot_tmpdir/scmroot/rpm
Cloning into '/var/lib/mock/f40-build-2321935-58618/root/chroot_tmpdir/scmroot/rpm'...
$ git fetch origin ba220b3433cda8210ad024057c8dd9a47594e217:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rpm
 * [new ref]         ba220b3433cda8210ad024057c8dd9a47594e217 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba220b3 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild