Train data problem

[lky-violet]

1. In run.py line 119 the code got the dataloader , however in dataloader line 161 , I find that all train data's label are set to 0. And in model_bert.py line 525, all targets are used to train model. So I want to know if it is a mistake?
2. MIND dataset is a recommendation task. However in run.py training process, I haven't find the use of behaviors.tsv but the only use of news.tsv. So I have the problem that what's the train target of the training process?