issues: 736272283

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
736272283 MDU6SXNzdWU3MzYyNzIyODM= 4565 failing upstream-dev polyfit warning test 14808389 closed 0     1 2020-11-04T16:56:26Z 2020-11-09T19:08:35Z 2020-11-09T19:08:35Z MEMBER      

In xarray/tests/test_dataset.py::TestDataset::test_polyfit_warnings, the second call to polyfit: python ds.var1.polyfit("dim2", 10, full=True)

emits a warning with the current upstream-dev pandas: xarray/tests/test_dataset.py::TestDataset::test_polyfit_warnings .../xarray/core/alignment.py:307: FutureWarning: Index.__or__ operating as a set operation is deprecated, in the future this will be a logical operation matching Series.__or__. Use index.union(other) instead index = joiner(matching_indexes)

since the test makes sure only the first call emits a warning (a np.RankWarning), the test fails.

 
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