Seems the splitting is not working

[Longhan9926]

It appears that by calling Subset.dataset in train_ensemble, the whole dataset is used instead of the split ones.

[CompRhys]

55e41a8 seemingly this bug was introduced here. @janosh. The bug was introduced after the results presented in the papers but will look at fixing this. Thanks for reporting!

[janosh]

oops, sorry about that. glad @Longhan9926 eventually caught this! 👍