$ git clone -n https://src.fedoraproject.org/rpms/cffconvert.git /var/lib/mock/f40-build-2283513-55592/root/chroot_tmpdir/scmroot/cffconvert
Cloning into '/var/lib/mock/f40-build-2283513-55592/root/chroot_tmpdir/scmroot/cffconvert'...
$ git fetch origin 311dbe621f8a7bb3624e8a9f2b98907f429a1f03:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cffconvert
 * [new ref]         311dbe621f8a7bb3624e8a9f2b98907f429a1f03 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 311dbe6 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild