Reference Issues/PRs

Fixes #14860
This pull request is identical to #14862 with the addition of an extra commit as suggested by @ilivans See comment here

What does this implement/fix? Explain your changes.

I added the extra line: csr_matrix(np.array([[0, 1]])), to the following section in the scikit-learn/sklearn/utils/tests/test_multiclass.py file:

EXAMPLES = {
    "multilabel-indicator": [
      ...
      csr_matrix(np.array([[0, 1]])),
      ....
    ]}

Any other comments?

Let me know if you need any changes or if I missed something