[BUG] Groupby-apply ignores as_index= argument

[shwina]

The as_index= argument is ignored by groupby-apply:

In [2]: df = cudf.DataFrame({'a': [1, 1, 2], 'b': [1, 2, 3]})
In [3]: df.groupby('a', as_index=False).apply(lambda x: x['b'].sum())
Out[3]:
a
1    3
2    3
dtype: int64

In [4]: df.to_pandas().groupby('a', as_index=False).apply(lambda x: x['b'].sum())
Out[4]:
   a  None
0  1     3
1  2     3

[brandon-b-miller]

I think I know what might be happening here, will take a look!