Null method full_names

[jmelot]

Hi, we noticed some method full_names are now null in papers-with-abstracts.json.gz and methods.json.gz - for example, the "Contrastive Learning" method (https://paperswithcode.com/method/contrastive-learning) has a null full_name. I don't think this was the case before around April 14, as our pipeline started failing due to this issue on that date. We've already updated our pipeline, just letting you know in case this is unexpected on your end.