Backport PR #31690 on branch 1.0.x (TST: add test for regression in groupby with empty MultiIndex level)#31692

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jorisvandenbossche merged 1 commit intopandas-dev:1.0.xfrom meeseeksmachine:auto-backport-of-pr-31690-on-1.0.x

Feb 5, 2020

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Commits on Feb 5, 2020

Backport PR pandas-dev#31690 : TST: add test for regression in groupby with empty MultiIndex level

jorisvandenbossche
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meeseeksmachine
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