re-add scoring filtering

tests/test_modeling_bart.py

@@ -471,8 +471,7 @@ class BartModelIntegrationTest(unittest.TestCase):
             attention_mask=dct["attention_mask"].to(torch_device),
             num_beams=4,
             length_penalty=2.0,
-            #            max_length=max_length + 2,
-            max_length=max_length + 1,
+            max_length=max_length + 2,
             min_length=min_length + 1,
             no_repeat_ngram_size=3,
             do_sample=False,