Target sequence truncated in report (translator.py)

[pierregodard]

When force decoding in a seq2seq model (config file similar to forced.yaml), it appears that the following line (https://github.com/neulab/xnmt/blob/master/xnmt/translator.py#L130)

trg_words = [self.trg_vocab[w] for w in output_actions[1:]]

truncates the target sequence from the first unit. Correcting to output_actions[0:] solves my problem (I am dumping attention matrices in a plain text format), but I wonder if there is another report scenario in which the truncation is needed?