2.4_fix_mtp_forward_meta (#5977)

Author: xiaoluomi

fastdeploy/spec_decode/mtp.py

@@ -1014,7 +1014,9 @@ def _propose_cuda(self, step_use_cudagraph: bool = False, is_dummy_run: bool = F
                 # 4. Compute logits, Sample
                 logits = self.model.compute_logits(hidden_states, forward_meta=self.forward_meta)
                 if self.enable_logprob and self.enable_draft_logprob and substep == 0:
-                    first_token_logits = self.model.compute_logits(self.model_inputs["first_token_hidden_states"])
+                    first_token_logits = self.model.compute_logits(
+                        self.model_inputs["first_token_hidden_states"], forward_meta=self.forward_meta
+                    )
 
                     speculate_get_logits(
                         self.model_inputs["draft_logits"],