html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/4362#issuecomment-679869467,https://api.github.com/repos/pydata/xarray/issues/4362,679869467,MDEyOklzc3VlQ29tbWVudDY3OTg2OTQ2Nw==,10194086,2020-08-25T08:00:21Z,2020-08-25T08:00:21Z,MEMBER,@darikg are you interested to send in a PR? ,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,683649612
https://github.com/pydata/xarray/issues/4362#issuecomment-678811192,https://api.github.com/repos/pydata/xarray/issues/4362,678811192,MDEyOklzc3VlQ29tbWVudDY3ODgxMTE5Mg==,1217238,2020-08-23T18:58:13Z,2020-08-23T18:58:13Z,MEMBER,"I agree, marking this as a bug. We should use `deepcopy()` recursively on NumPy arrays.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,683649612
https://github.com/pydata/xarray/issues/4362#issuecomment-678369025,https://api.github.com/repos/pydata/xarray/issues/4362,678369025,MDEyOklzc3VlQ29tbWVudDY3ODM2OTAyNQ==,14808389,2020-08-21T16:05:46Z,2020-08-21T16:05:46Z,MEMBER,"the issue is that we use `numpy.ndarray.copy` to copy the data: https://github.com/pydata/xarray/blob/43a2a4bdf3a492d89aae9f2c5b0867932ff51cef/xarray/core/variable.py#L939 (`numpy.ndarray` defines `__array_function__`).

You can reproduce the issue using just `numpy`:
```python
In [14]: a0.copy()[0] is a0[0]                                                                                  
Out[14]: True
```

We might want to use `deepcopy` instead because duck arrays are not required to implement `.copy`.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,683649612