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/1537#issuecomment-326164860,https://api.github.com/repos/pydata/xarray/issues/1537,326164860,MDEyOklzc3VlQ29tbWVudDMyNjE2NDg2MA==,6815844,2017-08-31T01:39:00Z,2017-08-31T01:39:00Z,MEMBER,"Thanks for the investigation.
This is strange.

I raised an issue in https://github.com/numpy/numpy/issues/9633.
As it is clear xarray cannot do anything about it, I close this issue.

","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,253975242
https://github.com/pydata/xarray/issues/1537#issuecomment-326154495,https://api.github.com/repos/pydata/xarray/issues/1537,326154495,MDEyOklzc3VlQ29tbWVudDMyNjE1NDQ5NQ==,6815844,2017-08-31T00:21:53Z,2017-08-31T00:21:53Z,MEMBER,"I will raise an issue in NumPy.
It might better if we could tell which part of our code causes this bug.
(And if we can avoid it within our code, it might be much quicker)
Do you have any idea?

I confirmed
+ indexing by a `Variable` already causes this bug
+ only simple subclassing `common.AbstractArray` and `utils.NdimSizeLenMixin` does not cause this.

I suspect something related to `Variable` interpretation could trigger it.
","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,253975242