Fix issue with duplicate potential intents.

Author: drazvan

nemoguardrails/actions/v2_x/generation.py

@@ -159,7 +159,8 @@ async def _collect_user_intent_and_examples(
  # We add these in reverse order so the most relevant is towards the end.
  for result in reversed(results):
  examples += f"user action: user said \"{result.text}\"\nuser intent: {result.meta['intent']}\n\n"
- potential_user_intents.append(result.meta["intent"])
+ if result.meta["intent"] not in potential_user_intents:
+ potential_user_intents.append(result.meta["intent"])
 
  # We add all currently active user intents (heads on match statements)
  heads = find_all_active_event_matchers(state)