The signed-golden payload builder forwarded only ver_proc from the golden,
letting nat_op/tp_emis/ind_* fall to EmissaoRequest defaults. caso_devolucao_
intra is the only case with a non-default nat_op ('Devolucao de venda'), so
the emitted XML carried <natOp>Venda</natOp> and diverged from the (correct)
golden byte-for-byte. The golden was right and the emission handles natOp
correctly; the harness was feeding incomplete input. Byte-for-byte assertion
unchanged, golden unchanged.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
