BUG: Don't copy DataFrame columns as metadata
See https://github.com/pandas-dev/pandas/pull/37186/files#r506978889.
Basically, we don't want to accidentally do `series.name =
dataframe.name` and try to set a column.

cc @jorisvandenbossche. This could conceivably affect geopandas, since geodataframe has different metadata than geoseries: https://github.com/geopandas/geopandas/blob/924cdf65c7c15b01749d1cdd036c5c291e87b0f4/geopandas/geodataframe.py#L83

But I don't think it'll actually break anything for you.