`feature.copy()` doesn't retain manually created name

If I manually rename a feature:

```python
feature = feature.rename("my_name")
```

and then copy that feature, the new feature doesn't retain new name.

```python
renamed_feature = orig_feature.rename("my_name")
copied_feature = renamed_feature.copy()

assert copied_feature.get_name() == renamed_feature.get_name()
```