$ git clone -n https://src.fedoraproject.org/rpms/ttcp.git /var/lib/mock/f41-build-1042125-18998/root/chroot_tmpdir/scmroot/ttcp
Cloning into '/var/lib/mock/f41-build-1042125-18998/root/chroot_tmpdir/scmroot/ttcp'...
$ git fetch origin 5f8ac059d4cd234bb5572088a1ba4de88a12851a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ttcp
 * [new ref]         5f8ac059d4cd234bb5572088a1ba4de88a12851a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5f8ac05 Eliminate use of obsolete %patchN syntax (#2283636)