$ git clone -n https://src.fedoraproject.org/rpms/rpmreaper.git /var/lib/mock/f40-build-2321990-58623/root/chroot_tmpdir/scmroot/rpmreaper
Cloning into '/var/lib/mock/f40-build-2321990-58623/root/chroot_tmpdir/scmroot/rpmreaper'...
$ git fetch origin df9b62321a84cb56ef58e5176deef350d4711b0c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rpmreaper
 * [new ref]         df9b62321a84cb56ef58e5176deef350d4711b0c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df9b623 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild