$ git clone -n https://src.fedoraproject.org/rpms/kf5-kidletime.git /var/lib/mock/f40-build-2292572-56143/root/chroot_tmpdir/scmroot/kf5-kidletime
Cloning into '/var/lib/mock/f40-build-2292572-56143/root/chroot_tmpdir/scmroot/kf5-kidletime'...
$ git fetch origin c6a514bfa182086123014e1a9d1f4a0eaa8ab26d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kidletime
 * [new ref]         c6a514bfa182086123014e1a9d1f4a0eaa8ab26d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6a514b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild