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/6345#issuecomment-1065381346,https://api.github.com/repos/pydata/xarray/issues/6345,1065381346,IC_kwDOAMm_X84_gG3i,1217238,2022-03-11T18:38:42Z,2022-03-11T18:38:42Z,MEMBER,"The data type restriction here seems to date back to the original PR adding support for appending. I turned up this comment that seems to summarize the motivation for this check:
https://github.com/pydata/xarray/pull/2706#issuecomment-502481584

I think the original issue was that appending a fixed-width string could be a problem if the fixed-width does not match the width of the existing string dtype stored in Zarr.

This obviously doesn't apply in this case, because you are adding an entirely new variable. So I guess the check could be removed in that case.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1164454058