$ git clone -n https://src.fedoraproject.org/rpms/tth.git /var/lib/mock/f40-build-796527-140694/root/chroot_tmpdir/scmroot/tth
Cloning into '/var/lib/mock/f40-build-796527-140694/root/chroot_tmpdir/scmroot/tth'...
$ git fetch origin 3bef601ce2e70150f0d025fb3fb11b68a70a797d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tth
 * [new ref]         3bef601ce2e70150f0d025fb3fb11b68a70a797d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3bef601 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild