$ git clone -n https://src.fedoraproject.org/rpms/python-flufl-testing.git /var/lib/mock/f40-build-2026497-47240/root/chroot_tmpdir/scmroot/python-flufl-testing
Cloning into '/var/lib/mock/f40-build-2026497-47240/root/chroot_tmpdir/scmroot/python-flufl-testing'...
$ git fetch origin d5b6c209192c64ba58a767504b34f256c21c81ab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-flufl-testing
 * [new ref]         d5b6c209192c64ba58a767504b34f256c21c81ab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d5b6c20 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild