Label search is dropping empty

[robertfjones]

I have been looking at the labelling tool, I believe we are losing many False classes as we are not setting 'drop_empty' to False in the label make search method. I think this would have a big impact is out monitoring records are abbreviated or pre-filtered (to some degree).

https://compose.alteryx.com/en/stable/generated/methods/composeml.LabelMaker.search.html#composeml.LabelMaker.search

drop_empty (bool) – Whether to drop empty slices. Default value is True

[kveerama]

If the data slice is empty and does not have data, it drops that data slice when in fact it could be a legitimate false example.

Some times data slice may not have any data and that means everything is normal, so it should be a false example for ML