issue_comments: 781571084

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https://github.com/pydata/xarray/issues/4922#issuecomment-781571084 https://api.github.com/repos/pydata/xarray/issues/4922 781571084 MDEyOklzc3VlQ29tbWVudDc4MTU3MTA4NA== 2448579 2021-02-18T19:08:44Z 2021-02-18T19:08:44Z MEMBER

Maybe the padding is breaking down for length-1 arrays?

I would look at padded in this function https://github.com/pydata/xarray/blob/c9b9eec73a033e275b6012e7d391dd42591ccf52/xarray/core/rolling.py#L461-L463

 
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