Have the `facebook/blenderbot-xxx` checkpoints already been trained on the BST Tasks?
TheBlenderbot paperdescribes a “pretrained generative” model trained on thepushshift.io Redditdataset. This model is also referred to as “pushshift.ioReddit Generative”.They go on to fine-tune this model on the “BST tasks” (ConvAI2, Empathetic Dialogues, Wizard of Wikipedia, Blended Skill Talk) and call the resulting model “BST Generative”.Are the checkpointsfacebook/blenderbot-xxxthe “pretrained generative”  model or “BST Generative” model?