[BUGFIX] GPTQ quantization compatibility for Qwen3 Next MOE models (AutoGPTQ and AutoRound-GPTQ) (vllm-project#25268)

Signed-off-by: JartX <sagformas@epdcenter.es>
Signed-off-by: charlifu <charlifu@amd.com>

Author: JartX

vllm/model_executor/models/qwen3_next.py

@@ -148,9 +148,11 @@ def __init__(
 
     def _maybe_ignore_quant_config(self, quant_config: QuantizationConfig):
         # GPTQ configs do not have a list of ignored modules, however AutoGPTQ
-        # seems to avoid gate quantization.
-        # See: https://huggingface.co/Qwen/Qwen3-30B-A3B-GPTQ-Int4
-        if isinstance(quant_config, (GPTQConfig, GPTQMarlinConfig)):
+        # seems to avoid gate quantization while AutoRound does.
+        if isinstance(
+                quant_config,
+            (GPTQConfig,
+             GPTQMarlinConfig)) and not quant_config.autoround_version:
             return None
         return quant_config