$ git clone -n https://src.fedoraproject.org/rpms/rust-cfonts.git /var/lib/mock/f40-build-2701683-70474/root/chroot_tmpdir/scmroot/rust-cfonts
Cloning into '/var/lib/mock/f40-build-2701683-70474/root/chroot_tmpdir/scmroot/rust-cfonts'...
$ git fetch origin d6b97cb05c516323b2096678248d35ded2ee35cb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cfonts
 * [new ref]         d6b97cb05c516323b2096678248d35ded2ee35cb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6b97cb Update to 1.1.4