Early Stopping Callback not working
🐛 Bug

See #2038. Early stopping stopped too early when using Lightning 0.7.7.dev0 (only on a Slurm cluster, not locally, but I might have been using slightly different Lightning versions). After upgrading to current master, early stopping does not work anymore, at all. I had a similar problem because of not having a val_step (see #1201), maybe something  like that crept back in.
To Reproduce
See #2038 but use current master