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[MRG+1] BUG: MultiLabelBinarizer.fit_transform sometimes returns an invalid CSR matrix #7750
See scipy/scipy#6719 for context.
The gist is that the
Alternately, we could insert
referenced this pull request
Oct 26, 2016
Okay, comments added. I skipped the full CI treatment for the comment-only changes.
Conversion to LIL format would test the symptom but not the cause of the error. It's possible that we may add checks in scipy to deal with this in the future, so I'd prefer to not rely on