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
665232266,MDU6SXNzdWU2NjUyMzIyNjY=,4265,cftime plotting fails on upstream-dev,2448579,closed,0,,,5,2020-07-24T15:07:44Z,2020-07-27T13:13:48Z,2020-07-26T19:04:55Z,MEMBER,,,,"seen in https://dev.azure.com/xarray/xarray/_build/results?buildId=3365&view=logs&jobId=2280efed-fda1-53bd-9213-1fa8ec9b4fa8&j=2280efed-fda1-53bd-9213-1fa8ec9b4fa8&t=175181ee-1928-5a6b-f537-168f7a8b7c2d

```
=========================== short test summary info ============================
FAILED xarray/tests/test_plot.py::TestCFDatetimePlot::test_cfdatetime_line_plot
FAILED xarray/tests/test_plot.py::TestCFDatetimePlot::test_cfdatetime_pcolormesh_plot
FAILED xarray/tests/test_plot.py::TestCFDatetimePlot::test_cfdatetime_contour_plot
```

e.g.
```
=================================== FAILURES ===================================
_________________ TestCFDatetimePlot.test_cfdatetime_line_plot _________________

self = <xarray.tests.test_plot.TestCFDatetimePlot object at 0x7f71d66219d0>

    def test_cfdatetime_line_plot(self):
E       ValueError: setting an array element with a sequence. The requested array would exceed the maximum number of dimension of 1.

/usr/share/miniconda/envs/xarray-tests/lib/python3.8/site-packages/matplotlib/transforms.py:943: ValueError
```
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