id,node_id,number,state,locked,title,user,body,created_at,updated_at,closed_at,merged_at,merge_commit_sha,assignee,milestone,draft,head,base,author_association,auto_merge,repo,url,merged_by
223716347,MDExOlB1bGxSZXF1ZXN0MjIzNzE2MzQ3,2491,closed,0,Dataset.copy docstring matches behavior,10374429," - [ ] Closes #2490

This makes the docstring of Dataset.copy match the actual behavior. 

However, I noticed that DataArray.copy has the opposite behavior for the deep keyword. Is this intentional, or are they supposed to behave the same way?
",2018-10-17T18:54:21Z,2018-10-23T05:59:53Z,2018-10-23T05:59:46Z,2018-10-23T05:59:46Z,6008dc43bbf3b161cf822142082398073aba9f9d,,,0,4badc77d9770efaf48dc7a63965c5b3f12148024,9f4474d657193f1c7c9aac25bb2edf94755a8593,CONTRIBUTOR,,13221727,https://github.com/pydata/xarray/pull/2491,