Bug in split_validation

[emmanuel-nwogu]

There is a bug in split_validation(): At this line, we create cb_list based on save_models but we never pass it to model.evaluate(). This means that your model will never be saved no matter what you pass in for save_models.

cc @muellerdo

[muellerdo]

You are absolutely right!
Thanks for spotting this bug. :)

I will try to fix it, ASAP.

Best Regards,
Dominik Müller