$ git clone -n https://src.fedoraproject.org/rpms/dc3dd.git /var/lib/mock/f45-build-7328-362/root/chroot_tmpdir/scmroot/dc3dd
Cloning into '/var/lib/mock/f45-build-7328-362/root/chroot_tmpdir/scmroot/dc3dd'...
$ git fetch origin cd90f6abcf82461e646b21d0e44ef53ebe33ee58:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dc3dd
 * [new ref]         cd90f6abcf82461e646b21d0e44ef53ebe33ee58 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cd90f6a spec cleanup, fix F45FTBFS