REGR: ensure closed attribute of IntervalIndex is preserved in pickle roundtrip#36118

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jreback merged 2 commits intopandas-dev:masterfrom

jorisvandenbossche:regr-intervalindex-pickle-closed

Sep 4, 2020

Commits on Sep 4, 2020

REGR: ensure closed attribute of IntervalIndex is preserved in pickle roundtrip
jorisvandenbossche
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Merge remote-tracking branch 'upstream/master' into regr-intervalindex-pickle-closed
jorisvandenbossche
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