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/4397#issuecomment-1112331624,https://api.github.com/repos/pydata/xarray/issues/4397,1112331624,IC_kwDOAMm_X85CTNVo,2448579,2022-04-28T15:13:36Z,2022-04-28T15:13:36Z,MEMBER,"It seems like one issue here is that stack +  unstack doesn't roundtrip a non-dim coord variable
we start with
```
> Coordinates:
>    R        (pol_idx) float64 1.0 0.9979 0.9918 0.9816 ... -0.9918 -0.9979 -1.0
>    Z        (pol_idx) float64 0.0 0.06407 0.1279 ... 0.1279 0.06407 1.225e-16
```

and end with
```
> Coordinates:
>   R        (pol_idx, phi) float64 1.0 1.0 1.0 1.0 1.0 ... -1.0 -1.0 -1.0 -1.0
>   Z        (pol_idx, phi) float64 0.0 0.0 0.0 ... 1.225e-16 1.225e-16
```


But I  don't think that's unexpected given the report.

@kripnerl Sorry for the really late response. Can you clarify which behaviour is surprising to you here?
","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,690268366
https://github.com/pydata/xarray/issues/4397#issuecomment-1112099415,https://api.github.com/repos/pydata/xarray/issues/4397,1112099415,IC_kwDOAMm_X85CSUpX,26384082,2022-04-28T11:37:45Z,2022-04-28T11:37:45Z,NONE,"In order to maintain a list of currently relevant issues, we mark issues as stale after a period of inactivity

If this issue remains relevant, please comment here or remove the `stale` label; otherwise it will be marked as closed automatically
","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,690268366