Bug#1064370: python-xarray: intermittent fail in TestOpenMFDatasetWithDataVarsAndCoordsKw

[Rebecca N. Palmer]

Package: python3-xarray
Version: 2023.12.0-3

The xarray autopkgtest sometimes (~20% of the time) fails with
RuntimeError: NetCDF: Not a valid ID
in tests/test_backends.py::TestOpenMFDatasetWithDataVarsAndCoordsKw

Unlike the other random failures, this seems to be amd64-specific.

Exactly which test case fails varies:
test_open_mfdataset_does_same_as_concat[left-different-by_coords-None]
https://ci.debian.net/packages/p/python-xarray/testing/amd64/43085145/
test_open_mfdataset_dataset_combine_attrs[drop]
https://ci.debian.net/packages/p/python-xarray/testing/amd64/42861417/
test_open_mfdataset_does_same_as_concat[right-minimal-nested-t]
+ test_open_mfdataset_does_same_as_concat[right-minimal-by_coords-None]
https://ci.debian.net/packages/p/python-xarray/testing/amd64/42753466/
test_open_mfdataset_does_same_as_concat[outer-minimal-by_coords-None]
https://ci.debian.net/packages/p/python-xarray/testing/amd64/43021198/