$ git clone -n https://src.fedoraproject.org/rpms/cffconvert.git /var/lib/mock/f39-build-1731610-41251/root/chroot_tmpdir/scmroot/cffconvert
Cloning into '/var/lib/mock/f39-build-1731610-41251/root/chroot_tmpdir/scmroot/cffconvert'...
$ git fetch origin b753b344889bdf54eb8ecc2544a981f6aea62b19:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cffconvert
 * [new ref]         b753b344889bdf54eb8ecc2544a981f6aea62b19 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b753b34 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild