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
450844554,MDExOlB1bGxSZXF1ZXN0NDUwODQ0NTU0,4233,closed,0,Linear interp with NaNs in nd indexer,37403847,"<!-- Feel free to remove check-list items aren't relevant to your change -->

 - [x] Test added

When doing linear interpolatiion with an nd indexer that contains NaN's,  `xarray` previously threw a `KeyError` from the `missing._localize` function. This PR fixes this by swapping `np.min` and `np.max` with `np.nanmin` and `np.nanmax` in that function, ignoring any NaN values.
",2020-07-17T06:57:59Z,2020-08-27T08:50:15Z,2020-08-27T08:49:48Z,2020-08-27T08:49:48Z,ffce4ec93c2e401a37dba1f0bf33dbfc648aeec9,,,0,d187ba6743691c4eb26f8d8e2a2b852471ae27fc,a36d0a1d4657c848dcdd76d0ecb9c783ad464057,CONTRIBUTOR,,13221727,https://github.com/pydata/xarray/pull/4233,