Update emowoz.py

Debug: resolve duplicate key in the training set

emowoz.py

@@ -167,6 +167,9 @@ class EmoWOZ(datasets.GeneratorBasedBuilder):
         else:
             dial_ids = data_split[split][subset]
 
+        # resolve the duplicate key in the training set of emowoz/data-split.json
+        dial_ids = list(set(dial_ids)
+                        
         for key in dial_ids:
             yield key, {
                 "dialogue_id": key,