DOC: joblib.parallel_backend no longer in intersphinx #1436
Description
Sometime in the last day we started getting:
/home/larsoner/python/mne-python/mne/viz/_3d.py:docstring of mne.viz._3d.plot_evoked_field:16: WARNING: py:func reference target not found: joblib:joblib.parallel_backend
And indeed it appears to be missing
$ python -m sphinx.ext.intersphinx https://joblib.readthedocs.io/en/latest/objects.inv | grep parallel_backend
joblib.register_parallel_backend parallel.html#joblib.register_parallel_backend
And the old link is broken/does not have an anchor:
Looking into the changelog/history to find the culprit now...