Cloning item is not assigning the correct owner

**Describe the bug**
When cloning an item and setting a new owner, the owner will not be respected if that item does not have a folder.

**To Reproduce**
Clone an item without a folder and setting an owner

**Platform (please complete the following information):**
- OS: Windows
- Python API Version: 2.4.3

**Additional context**
The bug appears because when there is no folder the given owner is not respected.

```
if self.folder:
folder = self.target.content.folders.get(
folder=self.folder, owner=self.owner
)
else:
folder = self.target.content.folders.get()
```

The fix
`folder = self.target.content.folders.get(owner=self.owner)`