issue_comments: 1427503304

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https://github.com/pydata/xarray/issues/7463#issuecomment-1427503304 https://api.github.com/repos/pydata/xarray/issues/7463 1427503304 IC_kwDOAMm_X85VFfjI 118520620 2023-02-13T08:02:55Z 2023-02-13T08:02:55Z NONE

Yes I think we should, but I might have missed the rationale behind allowing it if this is intentional.

EDIT: perhaps better to issue a warning first to avoid some breaking change. We could also try to fix it (make a deep copy) at the same time as deprecating it, but that might be tricky without again introducing performance regressions.

I would assume that deepcopy are completely going to copy the object, so if I change internal parts (like coordinates here), 1st object shall not change. It definitely affects the performance, but otherwise deepcopy is not deep anymore

 
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