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/5646#issuecomment-888945107,https://api.github.com/repos/pydata/xarray/issues/5646,888945107,IC_kwDOAMm_X840_DnT,688461,2021-07-29T09:08:58Z,2021-07-29T09:08:58Z,NONE,"Note that comparison of pandas.MultiIndex instances ignores the names.
This may be the cause of the issue.

```python
import pandas as pd

a = pd.MultiIndex.from_tuples([(0, 0)], names=[""x"", ""y""])
b = pd.MultiIndex.from_tuples([(0, 0)], names=[""not-x"", ""not-y""])

print(a == b)
print(a.names == b.names)
```

Output:
```
[ True]
False
```
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