[BUG] Extracting a nested list-host-scalar throws error

[galipremsagar]

Describe the bug
When a nested list column contains a struct column and we try to extract the host-scalar it results in an error.

Steps/Code to reproduce bug

In [1]: import cudf

In [2]: s = cudf.Series([[[{'a':1, 'b':2, 'c':10}]]])

In [3]: s[0]
---------------------------------------------------------------------------
RuntimeError                              Traceback (most recent call last)
Cell In [3], line 1
----> 1 s[0]

File /nvme/0/pgali/envs/cudfdev/lib/python3.9/contextlib.py:79, in ContextDecorator.__call__.<locals>.inner(*args, **kwds)
     76 @wraps(func)
     77 def inner(*args, **kwds):
     78     with self._recreate_cm():
---> 79         return func(*args, **kwds)

File /nvme/0/pgali/envs/cudfdev/lib/python3.9/site-packages/cudf/core/series.py:1167, in Series.__getitem__(self, arg)
   1165     return self.iloc[arg]
   1166 else:
-> 1167     return self.loc[arg]

File /nvme/0/pgali/envs/cudfdev/lib/python3.9/contextlib.py:79, in ContextDecorator.__call__.<locals>.inner(*args, **kwds)
     76 @wraps(func)
     77 def inner(*args, **kwds):
     78     with self._recreate_cm():
---> 79         return func(*args, **kwds)

File /nvme/0/pgali/envs/cudfdev/lib/python3.9/site-packages/cudf/core/series.py:258, in _SeriesLocIndexer.__getitem__(self, arg)
    255 except (TypeError, KeyError, IndexError, ValueError):
    256     raise KeyError(arg)
--> 258 return self._frame.iloc[arg]

File /nvme/0/pgali/envs/cudfdev/lib/python3.9/contextlib.py:79, in ContextDecorator.__call__.<locals>.inner(*args, **kwds)
     76 @wraps(func)
     77 def inner(*args, **kwds):
     78     with self._recreate_cm():
---> 79         return func(*args, **kwds)

File /nvme/0/pgali/envs/cudfdev/lib/python3.9/site-packages/cudf/core/series.py:180, in _SeriesIlocIndexer.__getitem__(self, arg)
    178 if isinstance(arg, tuple):
    179     arg = list(arg)
--> 180 data = self._frame._get_elements_from_column(arg)
    182 if (
    183     isinstance(data, (dict, list))
    184     or _is_scalar_or_zero_d_array(data)
    185     or _is_null_host_scalar(data)
    186 ):
    187     return data

File /nvme/0/pgali/envs/cudfdev/lib/python3.9/site-packages/cudf/core/single_column_frame.py:385, in SingleColumnFrame._get_elements_from_column(self, arg)
    379 def _get_elements_from_column(self, arg) -> Union[ScalarLike, ColumnBase]:
    380     # A generic method for getting elements from a column that supports a
    381     # wide range of different inputs. This method should only used where
    382     # _absolutely_ necessary, since in almost all cases a more specific
    383     # method can be used e.g. element_indexing or slice.
    384     if _is_scalar_or_zero_d_array(arg):
--> 385         return self._column.element_indexing(int(arg))
    386     elif isinstance(arg, slice):
    387         start, stop, stride = arg.indices(len(self))

File /nvme/0/pgali/envs/cudfdev/lib/python3.9/site-packages/cudf/core/column/column.py:445, in ColumnBase.element_indexing(self, index)
    442 if idx > len(self) - 1 or idx < 0:
    443     raise IndexError("single positional indexer is out-of-bounds")
--> 445 return libcudf.copying.get_element(self, idx).value

File scalar.pyx:174, in cudf._lib.scalar.DeviceScalar.value.__get__()

File scalar.pyx:146, in cudf._lib.scalar.DeviceScalar._to_host_scalar()

File scalar.pyx:431, in cudf._lib.scalar._get_py_list_from_list()

File interop.pyx:144, in cudf._lib.interop.to_arrow()

RuntimeError: cuDF failure at: /nvme/0/pgali/cudf/cpp/src/interop/to_arrow.cu:280: Number of field names and number of children doesn't match

Expected behavior

In [4]: s[0]
Out[4]: 
[[{'a': 1, 'b': 2, 'c': 10}]]

Environment overview (please complete the following information)

• Environment location: [Bare-metal]
• Method of cuDF install: [from source]