issue_comments: 785334802

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https://github.com/pydata/xarray/issues/2368#issuecomment-785334802 https://api.github.com/repos/pydata/xarray/issues/2368 785334802 MDEyOklzc3VlQ29tbWVudDc4NTMzNDgwMg== 2448579 2021-02-24T19:58:16Z 2021-02-24T19:58:16Z MEMBER

Clearly we can detect this failure, so shall we rename the date dimension to date_ in this example? We can raise a warning saying round-tripping will not work for such datasets

 
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