fix empty start

app.py

@@ -129,7 +129,7 @@ def split_token_from_sequences(sequences, model) -> dict :
 		cont = False
 		step_words = []
 		for beam in range(n_sentences):
-			app_text = ''
+			app_text = '<empty_word>'
 			if step_i < len(gen_sequences_texts[beam]): 
 				app_text = gen_sequences_texts[beam][step_i]
 				cont = True
@@ -138,7 +138,7 @@ def split_token_from_sequences(sequences, model) -> dict :
 		print(words_by_step)
 
 		for i_bs, step_w in enumerate(step_words):
-			if step_w != '':
+			if not step_w in ['<empty_word>', '<pad>']:
 				#new id if the same word is not in another beam (?) [beam[i] was a token id]
 				#parent id = previous word and previous step.