TST: Add test for GroupBy.describe()
with duplicate columns
#35423
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GroupBy.describe()
with duplicate columns
#35423
I have checked that this issue has not already been reported.
I have confirmed this bug exists on the latest version of pandas.
(optional) I have confirmed this bug exists on the master branch of pandas.
While working on #35314 I made a change that broke
GroupBy.apply
if you called it on a DataFrame with duplicate columns; however, this break as not caught by any test. Was just caught on inpsection: #35314 (comment)This issue is just to add a test for this case to ensure it works and doesn't break again in the future.
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