REF: remove no-op casting in groupby.generic#41048

Merged

jreback merged 2 commits intopandas-dev:masterfrom

jbrockmendel:ref-gbop-downcast

Apr 20, 2021

Commits on Apr 19, 2021

avoid re-casting
jbrockmendel
committed

Commits on Apr 20, 2021

REF: remove no-op casting calls
jbrockmendel
committed