Model: Always enable decode_special_tokens

The frontend should handle the special tokens if they get emitted.

Signed-off-by: kingbri <8082010+kingbri1@users.noreply.github.com>

backends/exllamav2/model.py

@@ -1373,6 +1373,7 @@ class ExllamaV2Container(BaseModelContainer):
             min_new_tokens=params.min_tokens,
             gen_settings=gen_settings,
             stop_conditions=stop_conditions,
+            decode_special_tokens=True,
             filters=grammar_handler.filters,
             filter_prefer_eos=bool(grammar_handler.filters),
             return_probs=params.logprobs > 0,