$ git clone -n https://src.fedoraproject.org/rpms/cowsay-beefymiracle.git /var/lib/mock/f40-build-2432900-60676/root/chroot_tmpdir/scmroot/cowsay-beefymiracle
Cloning into '/var/lib/mock/f40-build-2432900-60676/root/chroot_tmpdir/scmroot/cowsay-beefymiracle'...
$ git fetch origin d58ef5f0a1c309b3189588dd8f0e137f4c32c5e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cowsay-beefymiracle
 * [new ref]         d58ef5f0a1c309b3189588dd8f0e137f4c32c5e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d58ef5f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild