$ git clone -n https://src.fedoraproject.org/rpms/python-flufl-bounce.git /var/lib/mock/f40-build-2707001-71251/root/chroot_tmpdir/scmroot/python-flufl-bounce
Cloning into '/var/lib/mock/f40-build-2707001-71251/root/chroot_tmpdir/scmroot/python-flufl-bounce'...
$ git fetch origin 4883cdbeae70c613d0a5351dc7d2deb740e4949d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-flufl-bounce
 * [new ref]         4883cdbeae70c613d0a5351dc7d2deb740e4949d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4883cdb Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild