fispresent

**Describe the bug** In the **418 to 424** line in **[cosyvoice/llm/llm.py](https://github.com/FunAudioLLM/CosyVoice/blob/main/cosyvoice/llm/llm.py)**. The original code is: ` chosen_lm_mask = chosen_lm_target == IGNORE_ID rejected_lm_mask = rejected_lm_target == IGNORE_ID chosen_logps = torch.gather(chosen_logits.log_softmax(dim=-1), dim=2,...