Final result sometimes has no content (if segments are missing after silence?)

buscribe/buscribe/buscribe.py

@@ -94,6 +94,7 @@ def finish_off_recognizer(recognizer: BuscribeRecognizer, db_cursor):
     """Flush the recognizer, commit the final line to the database and reset it."""
     final_result_json = json.loads(recognizer.final_result())  # Flush the tubes
 
+    if "result" in final_result_json:
         line_start_time = recognizer.segments_start_time + timedelta(seconds=final_result_json["result"][0]["start"])
         line_end_time = recognizer.segments_start_time + timedelta(seconds=final_result_json["result"][-1]["end"])