$ git clone -n https://src.fedoraproject.org/rpms/mythes-cs.git /var/lib/mock/f40-build-2614999-64176/root/chroot_tmpdir/scmroot/mythes-cs
Cloning into '/var/lib/mock/f40-build-2614999-64176/root/chroot_tmpdir/scmroot/mythes-cs'...
$ git fetch origin d30a351b2e89961bf4e40b41aad1583180b19ce8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mythes-cs
 * [new ref]         d30a351b2e89961bf4e40b41aad1583180b19ce8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d30a351 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild