$ git clone -n https://src.fedoraproject.org/rpms/dcfldd.git /var/lib/mock/f45-build-7330-362/root/chroot_tmpdir/scmroot/dcfldd
Cloning into '/var/lib/mock/f45-build-7330-362/root/chroot_tmpdir/scmroot/dcfldd'...
$ git fetch origin 574c46dfa02c224ad1e3e31bbcbe41b3984e08d4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dcfldd
 * [new ref]         574c46dfa02c224ad1e3e31bbcbe41b3984e08d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 574c46d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild