Downgrade sphinx to fix doc search. #3875
Merged
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Problem is related to the Sphinx API change in v3.4 + readthedocs theme, but upgrading the theme to v0.5.2 did not fix it. Downgrading sphinx to v3.3.1 fixes search.
Related issues:
sphinx-doc/sphinx#8591
readthedocs/sphinx_rtd_theme#1021
Fixes #3802
This change is